trydedd ar hugain

== Welsh == === Alternative forms === 23ain (abbreviation) === Etymology === From trydydd (“third”) +‎ ar (“on”) +‎ ugain (“twenty”). === Pronunciation === (North Wales) IPA(key): /ˌtrədɛð ar ˈhɪɡai̯n/ (South Wales, standard, colloquial) IPA(key): /ˌtrədɛð ar ˈhiːɡai̯n/, /ˌtrədɛð ar ˈhɪɡai̯n/ (South Wales, colloquial) IPA(key): /ˌtrədɛð ar ˈhiːɡɛn/, /ˌtrədɛð ar ˈhɪɡai̯n/ === Adjective === trydedd ar hugain feminine singular of trydydd ar hugain === Mutation ===