brook

arroyo, fresh, freshet, runoff

bayou, coulee, slough (also slew), stream, wash

canal, channel, cut, cutoff, gut, kill, millrace, millstream, race, watercourse, waterway

affluent, branch, confluent, distributary, influent, tributary

allow, permit, suffer, swallow

reconcile (to)

acquiesce, agree (with or to), assent (to), capitulate, consent (to), respect, submit (to), yield (to)