v. t.
Sprot deponeth that he entered himself thereafter in conference. State Trials(1606). [ 1913 Webster ]
v. i. To testify under oath; to depose; to bear witness. [ A Scotticism ] [ 1913 Webster ]
The fairy Glorians, whose credibility on this point can not be called in question, depones to the confinement of Merlin in a tree. Dunlop. [ 1913 Webster ]
n. [ L. deponenes, -entis, laying down. See Depone, v. t. ]
a. [ L. deponens, -entis, laying down (its proper passive meaning), p. pr. of deponere: cf. F. déponent. See Depone. ] (Gram.) Having a passive form with an active meaning, as certain latin and Greek verbs. [ 1913 Webster ]