achydd

== Welsh == === Etymology === From ach (“lineage, genealogy”) +‎ -ydd. === Pronunciation === (North Wales) IPA(key): /ˈaχɨ̞ð/ (South Wales) IPA(key): /ˈaːχɪð/, /ˈaχɪð/ === Noun === achydd m (plural achyddion) genealogist ==== Derived terms ==== achyddiaeth (“genealogy”) achyddol (“genealogical”) === Mutation === === References === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “achydd”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies