Originally
来自Big Physics
Safin(讨论 | 贡献)2022年4月27日 (三) 03:04的版本 (建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=originally+etymology&newwindow=1&hl=en ref] Middle English (the earliest use being in the…”的新页面)
Middle English (the earliest use being in the phrase original sin ): from Old French, or from Latin originalis, from origin- (see origin).
wiktionary
original + -ly