term:

Depose

depose vb

de·posed
de·pos·ing
vt
1 : to testify to under oath or by sworn affidavit
2 : to take testimony from esp. by deposition [plaintiffs…were entitled to experts retained by the defendants “National Law Journal“] compare examine
vi
: testify [the plaintiff deposed in person to many specific facts “Mintz v. Atlantic Coast Line R. Co., 72 S.E.2d 38 (1952)”]