STEP Greek Lexicon: κιθάρα

κιθάρα, -ας, ἡ

[in LXX chiefly for כִּנּוֹר, frequently in Psa.33:2, al.); and in (Dan.3:5, al.) for קִיתָרֹס, itself a transliteration of κίθαρις, the Homeric form of κ. (cf. CB, Dn., lviii) ;]

a lyre, harp: 1Co.14:7, Rev.5:8 14:2 15:2.†

(AS)