tributary Synonyms

conducive contributing contributive contributory sportulary secondary satellite runnel runlet run rivulet river rillet rill stream side stream streamlet underaverage sideroad indraft watercourse headwater artesian well under tributaries substract subsidiary subordinate subject subalternate offshoot minor influent brook branch branches bifurcation beck bayou auxiliary ancillary afflux affluent adjunctive brooklet burn collateral indraught freshet fork