ynysu

== Welsh == === Etymology === ynys +‎ -u. Calque of Latin īnsulō. === Verb === ynysu (first-person singular present ynysaf) to insulate Synonym: inswleiddio to isolate Synonyms: neilltuo, arunigo ==== Conjugation ==== ==== Derived terms ==== hunanynysu (“to self-isolate”) ynysedig (“insulated”) ynysiad (“insulation”) === Mutation === === Further reading === D. G. Lewis, N. Lewis, editors (2005–present), “ynysu”, in Gweiadur: the Welsh–English Dictionary, Gwerin R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “ynysu”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies