Abbott-Smith Manual Greek Lexicon
ἐπι-στολή (G1992)
24 ἐπι-στολή , -ῆς, ἡ ( ἐπιατέλλω ), [in LXX for אִגֶּרֶת , etc.; freq. in Mac ;] a message . a letter, an epistle : Ac 9:2 , I Co 5:9 , al.; pl., Ac 22:5 , I Co 16:3 , al.; ἐ. σνστατικαί , II Co 3:1 (cf. Milligan, NTD , 254 f.). (On the NT ἐπιστολαί , cf. Milligan, Th. , 121 ff.; NTD , 85 ff.; Deiss., BS , 3 ff.; St. Paul , 8 ff.)
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain