gwneud galanastra o

== Welsh == === Etymology === Literally, “to make carnage”. === Verb === gwneud galanastra o (first-person singular present gwnaf galanastra) (idiomatic) to make a hash of Synonyms: troi'r drol, cawlio === Mutation === === Further reading === D. G. Lewis, N. Lewis, editors (2005–present), “gwneud galanastra o”, in Gweiadur: the Welsh–English Dictionary, Gwerin R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “gwneud”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies