achtainiam

Irish

Etymology

From Ancient Greek ἀκτίς (aktís, “ray”) + -iam.

Noun

achtainiam m (genitive singular achtainiam)

1. actinium

Declension

Declension of achtainiam

Fourth declension

Bare forms (no plural of this noun) Case Singular Nominative achtainiam Vocative a achtainiam Genitive achtainiam Dative achtainiam

Forms with the definite article Case Singular Nominative an t-achtainiam Genitive an achtainiam Dative leis an achtainiam don achtainiam

Related terms

• achtainíd
• achtanach (“actinic”, adjective)
• achtanacht

 

Mutation

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

Further reading

• Ó Dónaill, Niall (1977) “achtainiam”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN
• “actinium”, in New English-Irish Dictionary, Foras na Gaeilge, 2013–2024
• Foclóir Eolaíochta