Safin(讨论 | 贡献)2022年4月28日 (四) 18:20的版本 (建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=todo+etymology&newwindow=1&hl=en ref] late 16th century: from to do as in much to do, ori…”的新页面)
late 16th century: from to do as in much to do, originally meaning ‘much needing to be done’ but later interpreted as the adjective much and a noun; compare with ado.