ἐπίσταμαι prob. = ἐφίσταμαι Dep.: c. inf. to know how to do, to be able to do, capable of doing, Hom., Attic to be assured or believe that a thing is, Hdt. c. acc. to understand a matter, know, be versed in or acquainted with, Hom., etc.:—after Hom. to know as a fact, know for certain, know well, Hdt., Attic rarely, to know a person, Eur. c. part., to know that one is, has, etc., Hdt., Attic part. pres. ἐπιστάμενος, η, ον, is often also used as an adj. knowing, understanding, skilful, Hom.:—c. gen. skilled or versed in a thing, Hom.:—adv. ἐπισταμένως, skilfully, expertly, Hdt., Hes.