ˌrekyəˈzāshən noun
( -s )
Etymology: Middle French or Latin; Middle French recusation, from Latin recusation-, recusatio refusal, from recusatus (past participle of recusare to refuse) + -ion-, -io -ion
civil & canon law : refusal , objection , exception ; especially : a plea challenging a judge for alleged interest, partiality, or other incompetency