Godan verb with 'su' ending, Transitive verb
to send (someone) back; to send (someone) home
see 返す
けがを治療してもらったトラは、村人たちの手で無事、保護区に帰された。The tiger, having had its wounds treated, was returned by the villagers to the animal sanctuary without incident.
Also written 還す【かえす】