v2.0
Publishing history:
v1.0: 01/10/24
v1.1: 06/08/25
v2.0: 14/08/25: CG II and IV references added. Derivatives added.
tabh, an m. [əᵰ̪ ˈt̪ʰav], gen. taibh or indeclinable, used with the article, ‘the open sea, the Atlantic Ocean’. This word, along with its variants (below), is derived from ON haf nt. ‘sea, ocean’.
Cameron (in MacBain 1894a, 645); MacBain (1896; 1911); Goodrich-Freer (1897, 67); Mackay (1897, 94: Ice. haf); Henderson (1910, 137, 148); Mackenzie (1910, 385); MacLennan (1925); W. J. Watson (1932, 375); Sommerfelt (1952a, 230); Stewart (2004, 415); McDonald (2009, 360); Ó Muirithe (2010); Cox 2022, 853–56.
A. SG na h-abh, na habh [ᵰ̪ə ˈhav], na haf [ᵰ̪ə ˈhav̥]
The plural article na prefixes h- to a following vowel, but in this instance accommodates and therefore preserves the original aspirate in ON haf. This strategy is found in the southern Outer Hebrides.
A 1.
(i) na h-abh (Borgstrøm 1936, 295: Na h-Abh, Barra; Faclan bhon t-Sluagh˄: South Uist).
(ii) na hābh (Henderson 1910, 148: Barra, Eriskay) and, omitting the article, àbh (McAlpine 1832, s.v. tabh: Lewis). Henderson’s contention that the word is ‘sometimes long’ (C 2(i)) does not seem to be supported by the evidence: although McAlpine writes àbh in line with his entry tabh [tâv] (indicating a long vowel 
McAlpine does not use lengthmarks in headwords.
(iii) Rona na nav (1561, Collectanea 1847, 4) may be a typesetting error for *Rona na hav, for SG Rònaigh na Habh ‘Rònaigh of the ocean’.
The island Rònaigh (Eng. Rona) HW811324 lies about 70 km (44 miles) north-north-east of Lewis (Cox 2022, 487–56). For other forms of this alias, see B 2(ii) and B 3(iii).
A 2.
The final fricative -bh is devoiced, 
Before pausa in Gaelic, but perhaps also more generally under the influence of Scots haaf [hɑ(:)f], also from ON haf (SND˄).
(i) na haf (Henderson 1910, 137: Barra, Eriskay; Borgstrøm 1937, 229: na Haf [nə haf], Barra (so also Sommerfelt 1952a, 230); McDonald 1972: South Uist), 
For the spelling in CG II, 307: ‘the open Atlantic is known by the Norse name of haaf ’, and IV, 12: ≈‘tha e [the seal] cumail ris na haaf ’, cf. Scots haaf ‘the deep or open sea’, also from ON haf (SND˄).
(ii) haf (Goodrich-Freer 1897, 67; McDonald 2009, 360), omitting the article.
A 3.
The final fricative -bh is replaced by -mh, cf. tabh ~ tamh (B 3) and sabh ~ samh (C 2).
For spontaneous nasalisation in stressed syllables in Scottish Gaelic, see Ó Maolalaigh 2003, 109–17.
(i) amh (Shaw 1780; Armstrong 1825: †amh 
Armstrong conflates amh ‘ocean’ with †amh ‘water’, the latter for †abh ‘river’ (EG aḃ; see W. J. Watson 1926, 477).
(ii) àmh (HSS 1828, citing MacFarlane 1815, s.v. tabh, who in fact gives short amh), both omitting the article.
B. SG an tabh [əᵰ̪ ˈt̪ʰav], an taf [əᵰ̪ ˈt̪ʰav̥]
Initial h- is taken to represent the lenited form of SG t- and preceded by the masculine singular article an. This strategy is found in the northern Outer Hebrides and Argyllshire.
B 1.
(i) tabh (Shaw 1780; 
Shaw gives the senses ‘a sort of fishing-net, the ocean’, conflating tabh with SG tàbh ‘hand-net’, s.v.; so also Armstrong 1825.
For Armstrong’s comment that ‘[t]o the Celtic root ta may be traced the names of all waters which begin with ta or tam’, see Nicolaisen 2001, 244–45.
The article is absent in the poetic contexts of CG III, 246–47: Gach tur is tabh dh’an téid thu ‘In every land and sea thou goest’, and 254–55: Gach tur ʼs gach tabh dh’an téid thu ‘Each land and sea thou goest’.
(ii) taibh (MacDomhnuill 1741, 6; Shaw 1780), omitting the article, is perhaps in origin a genitive form (see below).
(iii) Genitive an taibh occurs in the place-names Sgeir an Taibh ‘the skerry of the ocean’ NA686464, the outermost rock of the Flannan Isles, and Camus cùil an Taibh [sic] NM267236 (J. C. Watson 1965, 44, 154). According to the orthography, the latter name means ‘the bay of the nook of the ocean’, but the derivation is problematic (for a discussion, see MacArthur 2022˄).
B 2.
The final fricative -bh is devoiced, which is consequently reflected in the orthography.
(i) taif (Armstrong 1825), omitting the article, is perhaps in origin a genitive form.
(ii) Genitive an taif (MacDomhnuill 1776, xv: a ’n taif, 27 a ’n Taif, an Taif
Not an taibh as Henderson (1910, 137, 148) claims, but so written in J. C. Watson’s edition (1965, 44–45): Ri fuaim an taibh | Is uaigneach mo ghean ‘At the ocean’s sound, my mood is forlorn’.
The first edition of the songs of the Harris poetess Màiri nighean Alasdair Ruaidh (c.1615–c.1707) was published by MacDomhnuill in 1776; the second by Mackenzie in 1841; the most recent by J. C. Watson in 1965.
(iii) The radical form *an taf is represented in an unconventional orthography in an Haf-a-Siar from Lochs in Lewis (Christiansen 1938, 4, but 15 (without article and erroneously) haf-a-shiar), which doubtless represents SG (Lewis) *an taf a-siar *[ə ˈᵰ̪ʰav̥ ə ˈʃiəɾ], with the adverb (a-)siar used adjectively in the sense ‘in the west, western’ (< EG s-iar ‘to the west’).
B 3.
The final fricative -bh is replaced by -mh, cf. A 3 and C 2.
(i) tamh (Shaw 1780; Armstrong 1825), omitting the article.
(ii) an t-saimh (Faclan bhon t-Sluagh˄, Harris) is for an taimh and is perhaps in origin a genitive form: *[ə ˈᵰ̪ʰɛv] (or *[ə ˈᵰ̪ʰɛ̃v]) implies either orthographic taimh or t-saimh (the latter with mutation of initial s- + vowel after the genitive masculine article). However, given the Harris connection, we should probably read taimh (taibh); for saimh, see under C 2(i).
(iii) Genitive an daimh occurs as specific in SG Rònaigh an Daimh, ‘which appears to be “Rona of the stag” but may in fact be Rònaigh an Taibh “Rona of the Atlantic” ’ (Taylor 2011, 124, s.v. North Rona): an daimh for an taibh is likely to be the result of folk etymology.
C. SG an sabh
While initial h- could theoretically represent the lenited form of SG s- and, preceded by the masculine singular article an, yield an sabh, the form an sabh most likely arises from an t-sabh, a back-formation from an tabh, cf. (B 3(ii)).
C 1.
(i) sabh (Mackay 1897, 94: Sutherland 
Dwelly (1911) gives samh.
(ii) an sabh (K. Mackenzie 1910, 385). Mackenzie (ibid.) records an sabh a-siar ‘the western sea’ for Lochs in south-east Lewis, but this may also be a back-formation, with an tabh a-siar *[ə ˈᵰ̪ʰav ə ˈʃiəɾ] interpreted as an t-sabh a-siar; cf. the alternative interpretation an Haf-a-siar, also from Lochs (B 2(iii)).
C 2.
The final fricative -bh is replaced by -mh, cf. A 3 and B 3.
(i) sāmh (Henderson 1910, 137, 148). In contrast to Mackay’s extrapolation of sabh from Mackenzie’s 1841 forms (C 1 (i)), Henderson takes sāmh directly from Mackenzie’s contents’ page and glosssary (p. lxiii: (gen.) an t-sáimh, p. 376: sámh). However, the first line of the song in Mackenzie’s edition actually reads (p. 22) Ri fuaim an t-shăimh, with the breve indicating short [ɛ̃], with assonance between t-shăimh and ghean. It seems likely that Mackenzie used a breve to indicate the short vowel length of a relatively unfamiliar word, but that acute accents instead of breves were typeset in error in the contents’ page and glossary. Of course, Mackenzie’s form was itself a reinterpretion of earlier an taif (B 2(i)), and it follows that Henderson’s can be dismissed.
(ii) samh (Stewart 2004, 412). While Henderson cites long sāmh in the sense ‘surge’ (C 2(i)), Stewart cites short samh in the sense ‘the crest of a breaking wave’, following MacLennan (1925: ‘surge, white crest of wave, waves as they break on shore’). Mackenzie’s 1841 edition of Màiri nighean Alasdair Ruaidh’s song not only changes former an taif to an t-shăimh, it redefines the word from ‘ocean’ to ‘surge, the agitation of waves on the sea-beach, the crest of whitened billows’ (p. 376).
In his own edition of Màiri nighean Alasdair Ruaidh’s song, W. J. Watson (1932, 198, 375) gives short an t-saimh but the sense ‘the ocean’.
Or with a diminutive form samhan: ‘a fine mist of rain’.
According to Bugge (1912, 295), ON haf also gives Ir. tabh, but the Irish form is taken from O’Reilly’s Irish dictionary (1817; 1864 
The word is not listed in O’Brien’s Irish dictionary (1768).
The Latin text of the Treaty of Perth (1266) contains the word haffne: ... Manniam cum cæteris insulis Sodorensibus, et omnibus aliis insulis ex parte occidentali et australi magni Haffne (Munch 1874˄, App., 27) ‘Man and all the islands of the Western Isles, and all the other islands from the western and southern part of the great ocean’. Magni is the genitive (masc./nt.) of Lat. magnus ‘great’, and haffne is presumably also in the genitive case or at least in genitive position. Haffne does not appear to be Gaelic; neither could it represent an Old Norse genitive hafs or (with suffixed article) hafsins ‘the ocean’. It might, however, represent a petrified form of the Old Norse dative, e.g. (í) hafinu ‘(in) the ocean’ (Cox 2022, 853–56).
Derivatives: tabh occurs as the first element in the following compounds:
(1) With SG uan ‘lamb’
(Forbes 1905, 18: tabhuan, taifean ‘sea-calf or lamb, seal’; Dwelly 1911: tabhuan ‘idem’ (citing Forbes), AFB˄: tabh-uan /tafan/ ‘seal pup’.)
While Forbes’s spelling tabhuan is etymological, his taifean suggests a pronunciation [ˈt̪ʰafan] (hence AFB’s /tafan/), with the original long vowel of uan yielding open [a] as expected in unstressed position. For original medial [v] yelding [f], cf. siobhag, q.v.
(2) With SG bèist ‘animal, beast, monster’ 
Formally spelt béisd or béist.
(Forbes 1905, 18: ta-beisd (or ta-beist), tabh-bheisd, tapbheisd ‘large seal’; Dwelly 1911: tabh-bhéisd ‘large seal’ (citing Forbes), tap-bheist: see tar-bheisd [leg. tabh-bhéisd]; MacLennan 1925: taibeist: see tabhbheist [tav-vesht] ‘sea monster’; Faclan bhon t-Sluagh˄: tabaist ‘monster, wild beast’, Skye; AFB˄: ta-béist /ta beːʃdʲ/ ‘seal, Pinnipedia clade’, tabh-bhéist /ta veːʃdʲ/ ‘idem’.)
Forbes’s ta-beist and tapbheisd suggest blocking of the expected lenition of the initial of the second element in a closed compound due to the justaposition of homorganic consonants (EG bh [β] + b [b]), while tabh-bheisd suggests lenition of the second element by analogy. Assuming both forms are authentic, cf. SG dubh-breac ~ dubh-bhreac ‘brown trout’ (< dubh ‘black’ + breac ‘speckled one, trout’). Despite AFB’s reconstructed /ta beːʃdʲ/, first-syllable stress is evident in Faclan bhon t-Sluagh’s (Skye) tabaist, with reduction of the long vowel of bèist as expected in unstressed position; cf. (from Argyll) tabaist (MacGhille Sheathanaich 1956, 115–16) and taibeist (MacEacharn 1910, 283, 288, 291).
AFB˄ also lists sa-béist in the sense ‘seal’. This is drawn from ‘Oran mu’n Eaglais’ (pers. comm. AFB’s editor Michael Bauer), a satirical poem used as anti-Established Church propaganda following the Disruption of 1843 (MacLeod 1983). However, the context is (with supplied lengthmarks shown in roman type):
‘Creideam an crodh ʼus an caoirich, [‘ “I believe in cattle and in sheep,
‘Creideam an stìopainibh mòr; “I believe in large stipends;
‘Creideam san duais tha mi faotainn, “I believe in the reward I am receiving,
‘An t-airgiod, an glìob ʼs an t-òr; “The money, the glebe and the gold;
‘Creideam san uachdaran thìmeil “I believe in the temporal lord
‘An aghaidh an nì a deir Pòl;’ “Contrary to what Paul says;”
ʼS o nach tig am bainne r’an càileachd And as the milk doesn’t meet their taste
Feumaidh iad Sà-beist do ʼn fheòil. They require a Sabbath-beast of the meat.
Dh’ ith iad i uile mar thà, They’ve eaten it all already,
Ach an claigeann ʼus băs an dà làimh; But the skull and the palm of both hands;
ʼS do bhrìgh gun do lot iad a casan, And as they’ve wounded its feet,
Cha dèan i ceum astair gu bràth ... It’ll never take a step forward ...’]
(Mac-Mhathain 1846, 7: Stanza 16)
The poet, Iain MacMhathain (Iain mac Choinnich ʼic Fhearchair) of North Uist, enumerates supposed tenets of the Established Church’s creed, and blames its adherents for ignoring the basic priority of spiritual nourishment and for instead causing the dismemberment (the Disruption) of the body of Christ (the Church), with Sà-beisd apparently a play on SG Sàbaid ‘Sabbath’ and bèist ‘beast’.