Deficient
来自Big Physics
Safin（讨论 | 贡献）2022年4月27日 (三) 21:33的版本 （建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=deficient+etymology&newwindow=1&hl=en ref] late 16th century (originally in the theologic…”的新页面）
late 16th century (originally in the theological phrase deficient cause, denoting a failure or deficiency that has a particular consequence): from Latin deficient- ‘failing’, from the verb deficere (see defect1).
wiktionary
From Latin deficiens, present participle of deficere(“to lack, fail, be wanting”); see defect.
etymonline
deficient (adj.)
1580s, "lacking, wanting, incomplete;" c. 1600 "not having a full or adequate supply," from Latin deficientem (nominative deficiens), present participle of deficere "to desert, revolt, fail," from de "down, away" (see de-) + combining form of facere "to do, make" (from PIE root *dhe- "to set, put"). Compare defective. Related: Deficiently.
