llwyddio

== Welsh == === Verb === llwyddio (first-person singular present llwyddiaf) alternative form of llwyddo === Mutation === === References === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “llwyddio”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies