iasol

== Welsh == === Etymology === From ias +‎ -ol. === Pronunciation === IPA(key): /ˈjasɔl/ === Adjective === iasol (feminine singular iasol, plural iasol, equative mor iasol, comparative mwy iasol, superlative mwyaf iasol) chilling, thrilling, eerie cold === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “iasol”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies