Meaning

verb put down by force or intimidation

verb declare invalid

originFrom Middle English quaschen, quasshen, cwessen, quassen, from Old French quasser, from Latin quassāre, under the influence of cassō (“to annul”), from Latin quatiō (“to shake”) Cognate with Dutch kwetsen (“to hurt, injure”), German quetschen (“to crush, squash”), Spanish quejar (“to complain”).

Etymology from Wiktionary, CC BY-SA 3.0