出典:Wiktionary
From Middle English yeerly, yerely, from 古期英語 ġēarlīċ, ġērlīċ (“yearly, of the year, annual”), equivalent to year + -ly. Cognate with Scots yerelie (“yearly”), Saterland Frisian jierelk (“yearly”), West Frisian jierliks (“yearly”), Dutch jaarlijks (“yearly”), Afrikaans jaarlijks (“yearly”), German jährlich (“yearly”), Danish årlig (“yearly”), Norwegian Bokmål årlig (“yearly”), Norwegian Nynorsk årleg (“yearly”), Swedish årlig (“yearly”), Icelandic árlegur (“yearly”).
yearly (not comparable)