yn hyn o beth

== Welsh == === Etymology === From yn (“in”) +‎ hyn (“this”) +‎ o (“of”) +‎ beth (“a thing”). === Pronunciation === (North Wales) IPA(key): /ən ˈhɨ̞n ɔ ˌbeːθ/ (South Wales) IPA(key): /ən ˈhɪn ɔ ˌbeːθ/ === Prepositional phrase === yn hyn o beth (idiomatic) in this matter === References === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “yn hyn o beth”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies