ἐπίσταμαι , ipf. ἐπίστατο, fut. ἐπιστήσονται: know how, understand, w.
inf., Il. 2.611; often the part. in
the sense of skilled in, w. gen., Od. 21.406, abs., Il. 18.599; w. dat., Il. 15.282; of
‘knowing’ a fact, Od.
4.730.