early 15c., of action, "voluntary;" of persons, "taken in preference to others," especially "chosen by God for some special purpose," from Latin electus, past participle of eligere "to pick out, choose," from ex "out" (see ex-) + -ligere, combining form of legere "to choose," from PIE root *leg- (1) "to collect, gather." The noun meaning "those chosen by God" is from early 15c.