Ineffectual
来自Big Physics
Safin（讨论 | 贡献）2022年4月28日 (四) 03:17的版本 （建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=ineffectual+etymology&newwindow=1&hl=en ref] late Middle English: from medieval Latin ine…”的新页面）
late Middle English: from medieval Latin ineffectualis, from in- ‘not’ + effectualis, from Latin effectus (see effect); in later use from in-1 ‘not’ + effectual.
wiktionary
in- + effectual
etymonline
ineffectual (adj.)
early 15c., from in- (1) "not, opposite of" + effectual. Related: Ineffectually; ineffectuality.
