gwreiddyn

== Welsh == === Etymology === gwraidd (“root”) +‎ -yn === Pronunciation === (North Wales) IPA(key): /ˈɡwrei̯ðɨ̞n/ (South Wales) IPA(key): /ˈɡwrei̯ðɪn/ Rhymes: -ei̯ðɨ̞n === Noun === gwreiddyn (plural, singular gwraidd m) singulative of gwraidd (“roots”) === Noun === gwreiddyn m (plural gwreiddiau) (botany) root (figurative) source, origin, foundation, basis Synonyms: dechreuad, tarddiad, sylfaen, mam (mathematics) root, a number which, raised to a specified power, yields a previously specified number or expression Synonym: isradd (linguistics) root, a word from which another word or words are derived. (linguistic morphology) root, primary lexical unit of a word. (music) root, the foundational tone of a chord ==== Usage notes ==== The collective noun gwraidd (“roots”) has gwreiddyn as its singulative. Senses of gwreiddyn that have the collective form gwraidd are treated under gwraidd. The senses of gwreiddyn on this page have the plural form gwreiddiau instead. ==== Derived terms ==== gwreiddyn sgwâr (“square root”) === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “gwreiddyn”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies