Where does “regain” come from?

regain (Old French) comes from Old French gaigner, from Vulgar Latin *wadaniāre, from English unspecified, from English Un-, from Middle English un-, from Old English un-, from Proto-West Germanic un-, from Proto-Germanic un- — not.

Ancestry of “regain”, step by step

StepLanguageWordMeaning
1Old Frenchgaignerto win; to make money; to save money
2Vulgar Latin*wadaniāre
3EnglishunspecifiedNot specified; not thoroughly explained or...
4EnglishUn-not
5Middle Englishun-
6Old Englishun-negation or absence of: un-, non-; bad; forms...
7Proto-West Germanicun-not, un-
8Proto-Germanicun-not, un-
9Proto-Indo-Europeann̥-not, un-
10Proto-Indo-Europeannenot

Words derived from “regain

Every word from Proto-Indo-European neEvery word from English Un-Every word from Proto-Indo-European n̥-