Lat. A witness; one who gives evidence in court, or who witnesses a docu- ment. Testis de visu praeponderat aliis. 4 Inst. 279. An eye-witness is preferred to others. Testis Inpanaris sufficit ad factum in lnpanari. Moore, 817. A lewd person is a sufficient witness to an act committed in a brothel. Testis nemo in sna causa esse potest. No one can be a witness in his own cause. Testis oculatus unns plus valet quam auriti decern. 4 Inst. 279. One eye-witness is worth more than ten ear-witnesses.