cash (n.) – from Middle French caisse "money box" (16c.)
case (n.) – early 14c., from Anglo-French and Old North French casse
coach (n.) – from Middle French coche (16c.)
train (v.) – from Old French train (fem. traine), from trainer "to pull, draw,"
fail (v.) – early 13c., from Old French falir (11c., Modern French faillir) "be lacking, miss, not succeed,"
medley (n.) – c.1300, "hand-to-hand combat," from Old French medlee, variant of meslee
challenge (v.) – c.1200, "to rebuke," from Old French chalongier "complain, protest; haggle, quibble,"
troll (v.) – late 14c., "to go about, stroll," later (early 15c.) "roll from side to side, trundle," from Old French troller, a hunting term, "wander, to go in quest of game without purpose,"