adlais

== Welsh == === Etymology === From ad- +‎ llais (“voice”). === Pronunciation === IPA(key): /ˈadlai̯s/ === Noun === adlais m (plural adleisiau) echo Synonyms: atsain, adlef ==== Derived terms ==== adleisio (“to echo, to resound”) === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “adlais”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies