rhonell y wennol

== Welsh == === Etymology === Literally, “the swallow's tail”. === Noun === rhonell y wennol f crownvetch, ax-fitch (Securigera coronilla syn. Coronilla varia) Synonym: ffacbys coronog dovetail joint Synonym: uniad cynffonnog === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “rhonell y wennol”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies