ἐπιστατέον

A. one must consider, τί . . A.D. Synt. 18.22; τῷ "ἐρίπω" ῥήματι, εἰ . . ib.280.16; πρὸς ἕκαστον τῶν λεχθέντων Plot. 6.6.12.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project