TABER.Only in Nah_2:7 her handmaids mourn as with the voice of doves, tabering (Amer. RV [Note: Revised Version.] beating) upon their breasts. Beating the breast was a familiar Oriental custom in mourning (cf. Isa_32:12). The word here used means lit. drumming (cf. Psa_68:26, its only other occurrence). The English word taber means a small drum, usually accompanying a pipe, both instruments being played by the same performer. Other forms are tabor, tabour, and tambour; and dim. forms are tabret and tambourine.
Hastings' Dictionary of the Bible
Edited by James Hastings, D.D. Published in 1909
tā?bẽr (תּפף, tāphaph, ?to strike a timbrel? ((Psa_68:25)): The word is used only once in the King James Version, namely, in the exceedingly graphic account of the capture of Nineveh given in Nah_2:7. The queen (perhaps the city personified) is dishonored and led into ignominious captivity, followed by a mourning retinue of ?maids of honor? who taber upon, that is, beat violently, their breasts. Such drumming on the breasts was a gesture indicative of great grief (Luk_18:3).
International Standard Bible Encyclopedia
PRINTER 1915.