From epi and the base of basis; to walk upon, i.e. Mount, ascend, embark, arrive -- come (into), enter into, go abroad, sit upon, take ship.
see GREEK epi
see GREEK basis
1. to get upon, mount: ;ἐπί τί, Matthew 21:5 (Xenophon, Hell. 3, 4, 1, etc.; Genesis 24:61); τῷ πλοίῳ (to embark in), Acts 27:2 (Thucydides 7, 70); εἰς τό πλοῖον, Acts 21:6 R G; used without a case, of going aboard (a ship), Acts 21:2; to go up: εἰς ἱεροσολυμα, Acts 21:4 L T Tr WH (yet others refer this to 2).
2. to set foot in, enter: εἰς with the accusative of place, Acts 20:18; with the dative of place (as also in Greek writings), Acts 25:1.