Previously
来自Big Physics
Safin(讨论 | 贡献)2022年4月27日 (三) 02:05的版本 (建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=previously+etymology&newwindow=1&hl=en ref] early 17th century: from Latin praevius ‘go…”的新页面)
early 17th century: from Latin praevius ‘going before’ (from prae ‘before’ + via ‘way’) + -ous.
wiktionary
previous + -ly