- chock (n.)
- 1670s, "lumpy piece of wood," possibly from Old North French choque "a block" (Old French çoche "log," 12c.; Modern French souche "stump, stock, block"), from Gaulish *tsukka "a tree trunk, stump."
- chock (adv.)
- "tightly, close up against," 1799, back formation from chock-full.