adfeilio

== Welsh == === Etymology === ad- +‎ an unclear root *bal +‎ -io, possibly related to ball (“pestilence, destruction”). See also dadfeilio (“to degenerate, to decay”). === Pronunciation === IPA(key): /adˈvei̯ljɔ/ === Verb === adfeilio (first-person singular present adfeiliaf) to fall down, to become a ruin, to go to ruin Synonyms: treulio, dadfeilio, methu, gwaethygu ==== Conjugation ==== ==== Derived terms ==== adfeiliad (“ruin, decay”) adfeiliedig (“ruined, in ruin, decayed”) === Mutation === === Further reading === D. G. Lewis, N. Lewis, editors (2005–present), “adfeilio”, in Gweiadur: the Welsh–English Dictionary, Gwerin R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “adfeilio”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies