G2870
κοπετός
lamentation
κοπετός, -οῦ, ὁ (κόπτω, mid.), [in LXX chiefly for מִסְפֵּד ;] = cl. κομμός, a beating of the head and breast, lamentation: before ἐπί with dative of person(s), Act.8:2.† (AS)
The KJV translates G2870 in the following manner:
lamentation (2x)
Full Thayer's lexicon entry
κοπετός — kopetós
κοπετός, κοπετοῦ, ὁ (from κόπτομαι, see κόπτω), the Sept. for מִסְפֵּד; Latinplanctus, i. e. lamentation with beating of the breast as n sign of grief: κοπετόν ποιεῖσθαι ἐπί τίνι, Act 8:2; ἐπί τινα, Zec 12:10. (Eupolis in Bekker's annott. ad Etym. Magn., p. 776; Dionysius Halicarnassus, Antiquities 11, 31; Plutarch, Fab. 17.)
1 occurrence