Distinguishes three datable linguistic layers (Old Irish, 10th c. and 11th c.) corresponding to the three main editorial phases. Includes a detailed analysis of the linguistic material, contrasted with Saltair na Rann and Togail Troí.

Argues that the sevenfold division of the grades of laity is an artificial imposition of the church grades on an older, native order, and seeks to establish this original model.

Continues in ZCP 42 (1987), pp. 41-115.

Supplies the results to the LASID questionnaire for the Gaeltacht of Ráth Cairn in Co. Meath and their discussion.

Compares verbal formations (s-aorist, s-subjunctive and future, sye/o-future, and preterites other than the s-aorist) attested in Continental Celtic to their Insular Celtic counterparts.

Argues that Celt. *Neudont- is equivalent to Gmc. theonymic element (-)nauta- ‘fisher’ (literally ‘catcher’), cf. OSax. (Sax)nōt.

ad IEW, 446. Dissociates OIr. gert from Skt. ghṛtám ‘cream, (melted) butter’.

Traces the development of the Old Irish article from its origin in the Indo-European demonstrative stem *so/to- to its partial substitution by the root *sem- ‘one’.

Argues that the declension of the oblique cases of the OIr. ā-stems can be derived regularly from Indo-European with the intervention of the analogical spread to the nominal inflection of an extended stem in *-osiā- based on the forms here postulated for the accusative, genitive and dative of the 3rd sg. fem. demonstrative pronoun.