deposing

verb | \ di-ˈpōz \ | de·pose

1. : to testify to under oath or by sworn affidavit

2. : to take testimony from especially by deposition plaintiffs…were entitled to depose experts retained by the defendants —National Law Journal — compare examine

   : testify the plaintiff deposed in person to many specific facts —Mintz v. Atlantic Coast Line R. Co., 72 S.E.2d 38 (1952)