ceathair

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Irish[edit]

Irish cardinal numbers
 <  3 4 5  > 
    Cardinal : ceathair
    Ordinal : ceathrú
    Personal : ceathrar
    Attributive : ceithre

Etymology[edit]

From Old Irish cethair, from Proto-Celtic *kʷetwares, from earlier Proto-Celtic *kʷetwr̥es, from Proto-Indo-European *kʷetwóres.

Pronunciation[edit]

Numeral[edit]

ceathair

  1. four

Usage notes[edit]

  • This form is used independently, not with a noun that it modifies. It is always preceded by the particle a.
  • a ceathair, a cúig, a sé...four, five, six...
  • bus a ceathairbus number four
  • a ceathair a chlogfour o’clock

Derived terms[edit]

Related terms[edit]

  • ceathrar (used to modify personal nouns)
  • ceithre (used to modify non-personal nouns)

Mutation[edit]

Irish mutation
Radical Lenition Eclipsis
ceathair cheathair gceathair
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.