Abbott-Smith Manual Greek Lexicon
ἐπισφαλής (G2000)
1 ** ἐπισφαλής , -ές ( σφάλλω , to cause to fall ), [in LXX: Wi 9:14 (cf. -ῶς , ib. 4:4 ) * ;] prone to fall (Plat.). dangerous (Hipp., Plut., al.): Ac 27:9 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain