Gratuitous
来自Big Physics
Safin（讨论 | 贡献）2022年4月28日 (四) 08:08的版本 （建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=gratuitous+etymology&newwindow=1&hl=en ref] mid 17th century: from Latin gratuitus ‘giv…”的新页面）
mid 17th century: from Latin gratuitus ‘given freely, spontaneous’ + -ous.
wiktionary
From Latin grātuītus(“free”), from Latin grātia(“favor”), grātus(“showing favor”)
etymonline
gratuitous (adj.)
1650s, "freely bestowed," from Latin gratuitus "done without pay, spontaneous, voluntary," from gratus "pleasing, agreeable," from gratia "favor" (from suffixed form of PIE root *gwere- (2) "to favor"). Earlier was gratuital (1590s). Sense of "uncalled for, done without good reason" is first recorded 1690s.
