traean

== Welsh == === Etymology === From Proto-Celtic *triyanom. Cognate to Irish trian and Gaulish trianis. === Pronunciation === (North Wales) IPA(key): /ˈtreɨ̯.an/ (South Wales) IPA(key): /ˈtrei̯.an/ Rhymes: -eɨ̯an === Noun === traean m (plural traeanau) a third (1⁄3) ==== Derived terms ==== traeanu (“to trisect”) ==== Related terms ==== chwarter (“quarter”) hanner (“half”) === Mutation === === References === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “traean”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies