"to squat, crouch," 1720, Scottish, of uncertain origin, possibly a nasalized borrowing of a Scandinavian word such as Old Norse huka "to crouch," hoka, hokra "to crawl." Hunker down, Southern U.S. dialectal phrase, is from 1902, popularized c. 1965; in this use the verb is perhaps from northern British hunker "haunch." Related: Hunkered; hunkering.