acastóir

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Irish

Alternative forms

acaistear, agaistéir

Etymology

From ath- +‎ castóir

Pronunciation

(Munster) IPA^(key): /ˌɑkɑsˠˈt̪ˠoːɾʲ/
(Connacht) IPA^(key): /ˈaˌkasˠt̪ˠoːɾʲ/
(Ulster) IPA^(key): /ˈaˌkasˠt̪ˠaɾʲ/

Noun

acastóir m (genitive singular acastóra, nominative plural acastóirí)

axle

Declension

Declension of acastóir

Third declension

Bare forms:

Case	Singular	Plural
Nominative	acastóir	acastóirí
Vocative	a acastóir	a acastóirí
Genitive	acastóra	acastóirí
Dative	acastóir	acastóirí

Forms with the definite article:

Case	Singular	Plural
Nominative	an t-acastóir	na hacastóirí
Genitive	an acastóra	na n-acastóirí
Dative	leis an acastóir don acastóir	leis na hacastóirí

Derived terms

acastóir cromáin (“crank-axle”)
acastóir tiomána (“drive axle”)
bosca acastóra (“axle-box”)
dealg acastóra (“linchpin”)
líneáil acastóra (“lining of axle”)
pionna acastóra (“axle-pin”)
seafta acastóra (“axle-shaft”)

Mutation

Irish mutation
Radical	Eclipsis	with h-prothesis	with t-prothesis
acastóir	n-acastóir	hacastóir	t-acastóir
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

Further reading

Ó Dónaill, Niall (1977) “acastóir”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN
de Bhaldraithe, Tomás (1959) “acastóir”, in English-Irish Dictionary, An Gúm
“acastóir”, in New English-Irish Dictionary, Foras na Gaeilge, 2013-2024

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