Lexical Definition

‎קֻבַּעַת‎ qubbaʻath (koob-bah'-ath) dreg ^H:N-F
from ‎קָבַע‎

dregs.

• a goblet (as deep like a cover)

1) cup

See Greek: ποτήριον

Brown-Driver-Briggs

‎קֻבַּ֫עַת‎ noun feminine cup (perhaps loan-word from Assyrian [‡abu°tu], plural ‡abûâtê, probably cups, goblets; compare Arabic flower-cup, calyx); — construct ‎כּוֺס‎ ‎׳‎‎הַתַּרְעֵלָה ק‎ Isa 51:17 compare vIsa 51:22 (both figurative, and ‎כּוֺס‎ in both probably explanatory gloss, see Commentaries).

Brown-Driver-Briggs References