G4248
πρηνής
headlong
πρηνής, -ές (in Att.. also πρανής), [in LXX: Wis.4:19, 3Ma.5:43 3Mac 5:50 3Mac 6:23 * ;] headlong, prone: Act.1:18.† (AS)
The KJV translates G4248 in the following manner:
headlong (2x)
Full Thayer's lexicon entry
πρηνής — prēnḗs
πρηνής, πρηνες (allied with πρό; Vanicek, p. 484), Latinpronus, headlong: Act 1:18. (Wis 4:19; 3Ma 5:43; in Greek writings from Homer down, but in Attic more common πρανής, see Lob. ad Phryn., p. 431; (Winer's Grammar, 22).)
1 occurrence