Strong's G4248 · Greek

πρηνής

prenes · pray-nace'

from 4253; leaning (falling) forward ("prone"), i.e. head foremost

Scholarly Lexicons

Abbott-Smith Manual Greek Lexicon

 1 ** πρηνής , -ές (in Att. also πρανής ), [in LXX: Wi 4:19 , III Mac 5:43 , 50 6:23 *;] headlong , prone : Ac 1:18 .† 

G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain