probation (n.) 1
proof, demonstration
Cym V.v.363 [Belarius to Cymbeline, of the mantle] which for more probation / I can with ease produce
Ham I.i.157 [Horatio to Marcellus and Barnardo, of the Ghost's behaviour] This present object made probation
Mac III.i.79 [Macbeth to Murderers] I ... passed in probation with you / How you were borne in hand
MM V.i.157 [Friar Peter to Duke, of Friar Lodowick] he with his oath / And all probation will make up full clear
Oth III.iii.362 [Othello to Iago, of Desdemona's infidelity] so prove it / That the probation bear no hinge nor loop / To hang a doubt on