óenach

Old Irish

From óen (“one”) +‎ ag- (“to celebrate”), literally “celebrating as one”.^[1]

óenach n

Neuter o-stem
	Singular	Dual	Plural
Nominative	óenach^N	óenach^N	óenach^L, óenacha
Vocative	óenach^N	óenach^N	óenach^L, óenacha
Accusative	óenach^N	óenach^N	óenach^L, óenacha
Genitive	óenaig^L	óenach	óenach^N
Dative	óenach^L	óenachaib	óenachaib
Initial mutations of a following adjective: ^H = triggers aspiration ^L = triggers lenition ^N = triggers nasalization

Mutation of *óenach*
radical	lenition	nasalization
óenach (pronounced with /h/ in h-prothesis environments)	unchanged	n-óenach

Note: Certain mutated forms of some words can never occur in Old Irish.
All possible mutated forms are displayed for convenience.

^ Uhlich, Jurgen (2002) “Verbal governing compounds (synthetics) in Early Irish and other Celtic languages”, in Transactions of the Philological Society, volume 100, number 3, Wiley, →DOI, →ISSN, pages 403–433