aub

See also: AUB, a.u.b., and ǁaub

Old Irish

Alternative forms

ab, ob, oub

Etymology

From Proto-Celtic *abū, from Proto-Indo-European *h₂eb- (“water”).

Compare Welsh afon.

Pronunciation

IPA^(key): [au̯β]

Noun

aub f (genitive abae)

river

Declension

This term inflects irregularly, with the neuter n-stem declension interfering with many case forms, like in the genitive singular and dative plural. Due to this haphazard hybridization, many forms of the paradigm cannot be reconstructed with confidence.

Feminine n-stem
	singular	dual	plural
nominative	aub, ab	*abainn^L	aibnea
vocative	aub, ab	*abainn^L	aibnea^H
accusative	abainn^N	*abainn^L	aibnea^H
genitive	abae	*abann^L	*abann^N
dative	abainn^L	aibnib	aibnib

Initial mutations of a following adjective:

^H = triggers aspiration
^L = triggers lenition
^N = triggers nasalization

Descendants

Middle Irish: ab, aband, abann
- Irish: abha, abhainn
- Manx: awin
- Scottish Gaelic: abhainn

Mutation

Mutation of *aub*
radical	lenition	nasalization
aub (pronounced with /h/ in h-prothesis environments)	aub	n-aub

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

References

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