arddegyn

== Welsh == === Etymology === arddeg(au) (“teen(s)”) +‎ -yn === Noun === arddegyn m (plural arddegion, feminine arddegen) teenager ==== Related terms ==== yn ei arddegau === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “arddegyn”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies