senathair

Old Irish

Etymology

From sen (“old”) +‎ athair (“father”).

Pronunciation

• IPA^(key): /ˈsʲenəθərʲ/

Noun

senathair m (genitive senathar)

1. grandfather

Inflection

Masculine r-stem
	Singular	Dual	Plural
Nominative	senathair	senathairL	senaithir
Vocative	senathair	senathairL	senaithre
Accusative	senathairN	senathairL	senaithre
Genitive	senathar	senathar	senatharN
Dative	senathairL	senathrib	senathrib
Initial mutations of a following adjective: H = triggers aspiration L = triggers lenition N = triggers nasalization

Descendants

• Middle Irish: senathair
  • Irish: seanathair
  • Scottish Gaelic: seanair
  • Manx: shennayr

Mutation

Old Irish mutation
Radical	Lenition	Nasalization
senathair	ṡenathair	unchanged
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

Further reading

• Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “senathair”, in eDIL: Electronic Dictionary of the Irish Language