ἐπιβαίνω fut. -βήσομαι perf. - βέβηκα aor2 -έβην imperat. ἐπιβῆθι or ἐπίβα aor1 mid., ἐπεβησάμην Hom. always uses the Ionic aor1 form ἐπεβήσετο imperat. ἐπιβήσεο in fut. and aor. mid., perf. act., and athematic aor., intr., to go upon: c. gen. to set foot on, tread or walk upon, Hom., Attic:—also, ἐπ. ἐπί τινος Hdt. to get upon, mount on, νεῶν ἵππων Hom., Hdt.;—also, ἐπ. ἐπὶ νηός Hdt. of Time, to arrive at, Plat. metaph., ἐπʼ ἀναιδείης ἐπ. to indulge in impudence, Od.; εὐσεβίας ἐπ. to observe piety, Soph. c. dat. to mount upon, get upon, ναυσί Thuc.:—also, ἐπ. ἐπὶ πύργῳ Hdt. c. dat. pers. to set upon, attack, assault, τινί Xen. c. acc. loci, to light upon, Hom.: simply, to go on to a place, to enter it, Hdt. c. acc. to attack, like ἐπέρχομαι, Soph. :dnum [3.] to mount, νῶθʼ ἵππων Hes.; ἵππον Hdt. absol. to get a footing, Od. to step onwards, advance, Hes., Soph. to mount on a chariot or on horseback, be mounted, Il., Hdt.: to go or be on board ship, Il., Soph., etc. Causal in aor1 act. (ἐπιβιβάζω serves as pres.), to make one mount, set him upon, ἵππων ἐπέβησε Il.; πυρῆς ἐπέβησε Il. metaph., εὐκλεΐης ἐπίβησον bring to great glory, Il.; σαοφροσύνης ἐπέβησαν they bring him to sobriety, Od.