Derived by Geiriadur Prifysgol Cymru from rhy- (“before”) + geni (“birth”), possibly continuing a Proto-Celtic stem *ɸro-gany-. Compare Ancient Greek πρόγονος (prógonos, “ancestor”) for an equivalent formation.
In the 1990s, Lambert and Schrijver found a possible Gaulish cognate, relating rhieni with Gaulish regenia. They disagreed on the words' shared Proto-Celtic reconstruction, however. Lambert opts for *ɸrogenyā while Schrijver opts for *ɸrogenesa.[1] Both reconstructions face phonological difficulties. Lambert has no explanation for the -i ending in Welsh (final *-yā after a consonant is normally lost in Welsh) while Schrijver assumes a tenuous deletion of weakened -s- in Gaulish (which has many counterexamples).
rhieni m (collective, singulative rhiant)
radical | soft | nasal | aspirate |
---|---|---|---|
rhieni | rieni | unchanged | unchanged |
Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.
R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “rhieni”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies