rhiffio

== Welsh == === Etymology === Borrowed from English reef + -io. === Pronunciation === IPA(key): /ˈr̥ɪfjɔ/ === Verb === rhiffio (first-person singular present rhiffiaf) (transitive, intransitive) to reef (sail) ==== Conjugation ==== === Mutation === === References === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “rhiffio”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies