When in the same sentence two or more Nouns, applied as names to the same object, stand in the same grammatical relation to other words, it should naturally be expected that their Form, in so far as it depends on that relation, should be the same; in other words, that Nouns denoting the same object, and related alike to the governing word, should agree in Case. This accordingly happens in Greek and Latin. In Gaelic, where a variety of form gives room for the application of the same rule, it has been followed in some instances; as, Doncha mac Chailain mhic Dhonuil, Duncan the son of
Colin the son of Donald; where the words Chailain and mhic denoting the same person, and being alike related to the preceding Noun mac are on that account both in the same Case. It must be acknowledged, however, that this rule, obvious and natural as it is, has not been uniformly observed by the speakers of Gaelic. For example; instead of mac Ioseiph an t-saoir, the son of Joseph the carpenter, many would more readily say, mac Ioseiph an saor; instead of thuit e le laimh Oscair an laoich chruadalaich, he fell by the hand of Oscar the bold hero, it would rather be said, thuit e le laimh Oscair an laoch cruadalach. The latter of these two modes of expression may perhaps be defended on the ground of its being elliptical; and the ellipsis may be supplied thus: mac Ioseiph [is e sin] an saor; laimh Oscair [neach is e] an laoch cruadalach. Still it must be allowed, in favour of the rule in question, that the observance of it serves to mark the relation of the Nouns to each other, which would otherwise remain, in many instances, doubtful. Thus in one of the foregoing examples, if we should reject the rule, and write mac Ioseiph an saor; it would be impossible to know, from the form of the words, whether Joseph or his son were the carpenter.
The translators of the Scriptures into Gaelic, induced probably by the reasonableness and utility of the rule under consideration, by the example of the most polished Tongues, and by the usage of the Gaelic itself in some phrases, have uniformly adhered to this rule when the leading Noun was in the Genitive; as, do mhacaibh Bharsillai a' Ghileadaich, 1 Kings ii. 7; righ-chathair Dhaibhi athar, 1 Kings ii. 12; do thaobh Bheniamin am brathar, Judg. xxi. 6; ag gabhail nan clar chloiche, eadhon chlar a' cho-cheangail, Deut. ix. 9. The rule seems to have been disregarded when the leading Noun was in the Dative. See 1 Kings i. 25, Ruth iv. 5, Acts xiii. 33.
CHAPTER II.
OF GOVERNMENT.
Under this head is to be explained the Government of Nouns, of Adjectives, of Verbs, of Prepositions, and of Conjunctions.
Section I.
Of the Government of Nouns.
One Noun governs another in the Genitive. The Noun governed is always placed after that which governs it; as, ceann tighe, the head of a house or family; solus na gréine, light of the sun; bainne ghabhar milk of goats.