adaregydd

== Welsh == === Etymology === From adareg (“ornithology”) +‎ -ydd (“-ist”). === Pronunciation === (North Wales) IPA(key): /adaˈrɛɡɨ̞ð/ (South Wales) IPA(key): /adaˈreːɡɪð/, /adaˈrɛɡɪð/ === Noun === adaregydd m (plural adaregwyr) ornithologist Synonym: adarydd === Mutation === === References === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “adaregydd”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies