Where does “implacable” come from?

Implacable comes from Middle English implācāble, from Old French implacable, from Latin implacabilis, composed of the Latin prefix in- (not) and Latin placabilis (appeasing), ultimately from Proto-Indo-European ne (not).

implacable (English): Not able to be placated or appeased; Impossible...

Definitions

  1. Not able to be placated or appeased; Impossible...

Ancestry of “implacable”, step by step

StepLanguageWordMeaning
1Middle Englishimplācābleimmitigable, unappeasable
2Old Frenchimplacableharsh, unrelenting; implacable
3Latinimplacabĭlisunappeasable, implacable
4Latinim-Alternative form of in-; form of "in"; in
5Latinīn-un-, non-, not
6Latinînin, at, on, upon, from (space)
7Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
8Proto-Italicenin
9Proto-Indo-Europeanh₁énin

Words derived from “implacable

Every word from Proto-Indo-European h₁én
implacable — Etymology, Origin & Word History | Etymology Explorer