G2636
καταλαλιά
slander
κατα-λαλιά, -ᾶς, ἡ (κατάλαλος), [in LXX: Wis.1:11 * ;] evil-speaking, railing: p1., 2Co.12:20, 1Pe.2:1.† (AS)
The KJV translates G2636 in the following manner:
backbitings (2x), speakings (2x)
Full Thayer's lexicon entry
καταλαλία — katalalía
καταλαλιά, καταλαλιάς, ἡ (κατάλαλος, which see), defamation, evil-speaking: 2Co 12:20; 1Pe 2:1 (on the plural cf. Winers Grammar, 176 (166); Buttmann, 77 (67)). (Wis 1:11; Clement of Rome, 1 Cor. 30, 1 [ET]; 35, 5 [ET], and ecclesiastical writings; not found in classical Greek.)
2 occurrences
II Corinthians (1), I Peter (1)