ath-

See also: ath, áth, àth, aþ, að, and -aþ

Irish

Alternative forms

• a- (before t)
• aith- (slender form)

Etymology

From Old Irish aith-, ath-, from Proto-Celtic *ati-.

Prefix

ath-

1. re-, second
2. old, rejected, ex-
3. return
4. later, after

Derived terms

Irish terms prefixed with ath-

Mutation

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

References

• Ó Dónaill, Niall (1977) “ath-”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN
• Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “aith-, ath-”, in eDIL: Electronic Dictionary of the Irish Language

Old Irish

Prefix

ath-

1. broad form of aith-

Mutation

Old Irish mutation
Radical	Lenition	Nasalization
ath- (pronounced with /h/ in h-prothesis environments)	unchanged	n-ath-
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

Scottish Gaelic

Etymology

From Old Irish aith-, ath-, from Proto-Celtic *ati-.

Prefix

ath- (triggers lenition)

1. re-

Derived terms

Scottish Gaelic terms prefixed with ath-

References

• Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “aith-, ath-”, in eDIL: Electronic Dictionary of the Irish Language