Abbott-Smith Manual Greek Lexicon
Ἑβραΐς (G1446)
3 **† Ἑβραΐς (WH, Ἐβ- ), -ίδος (Aram. עִבְרַי ), peculiar form of Ἑβραϊκός , [in LXX, ἡ Ἑ. φωνή , IV Mac 12:7 16:15 * ;] in NT, ἡ Ἑ. διάλεκτος , Hebrew , i.e. the Aramaic vernacular of Palestine: Ac 21:40 22:2 26:14 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain