frithuillinn

Irish

Etymology

From frith- (“anti-, counter-”) +‎ uillinn (“angle”).

Noun

frithuillinn f (genitive singular frithuillinne, nominative plural frithuillinneacha)

1. (mathematics) return angle

Declension

Declension of frithuillinn (second declension)

bare forms case singular plural nominative frithuillinn frithuillinneacha vocative a fhrithuillinn a fhrithuillinneacha genitive frithuillinne frithuillinneacha dative frithuillinn frithuillinneacha forms with the definite article case singular plural nominative an fhrithuillinn na frithuillinneacha genitive na frithuillinne na bhfrithuillinneacha dative leis an bhfrithuillinn don fhrithuillinn leis na frithuillinneacha

Mutation

Mutated forms of frithuillinn

radical	lenition	eclipsis
frithuillinn	fhrithuillinn	bhfrithuillinn

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

Further reading

• Ó Dónaill, Niall (1977) “frithuillinn”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN
• de Bhaldraithe, Tomás (1959) “frithuillinn”, in English-Irish Dictionary, An Gúm