ceathair

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Irish

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Irish numbers (edit)
40[a], [b], [c]
 ←  3 4 5  → 
    Cardinal: ceathair
    Ordinal: ceathrú
    Personal: ceathrar
    Attributive: ceithre

Etymology

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

Pronunciation

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Numeral

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ceathair

  1. four

Usage notes

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  • 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...
  • deich a ceathair, deich a cúig, deich a sé...fourteen, fifteen, sixteen...
  • bus a ceathairbus number four
  • a ceathair a chlogfour o’clock

Derived terms

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

Mutation

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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.