-rwydd

== Welsh == === Etymology === From Proto-Celtic *reidom (“ride”), semantically bleached into an abstract suffix. === Pronunciation === (North Wales) IPA(key): /rʊɨ̯ð/ (South Wales) IPA(key): /rʊi̯ð/ === Suffix === -rwydd m forming abstract nouns, -ness, -ment ‎sicr (“certain”) + ‎-rwydd → ‎sicrwydd (“certainty”) ‎hapus (“happy”) + ‎-rwydd → ‎hapusrwydd (“happiness”) ‎amherffaith (“imperfect”) + ‎-rwydd → ‎amherffeithrwydd (“imperfection”) ==== Derived terms ==== === References === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “-rwydd”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies