"to compel, force," c. 1400, from Latin coactare "constrain, force," frequentative of cogere (past participle coactus) "to compel," also "curdle, collect" (see cogent). Related: Coacted; coacting; coaction; coactive.
coach-box
coach-horse
coaching
coach-maker
coachman
coact
co-act
coadaptation
coadjacent
coagulant
coagulate