1) black cummin 1a) a plant with small black acrid seeds used as a condiment
Full Brown-Driver-Briggs lexicon entry
קֶ֫צַחnoun masculineIsa 28:27black cumin (Nigella sativa Linn.; ᵐ5μελάνθιον, ᵑ9, gith id.; compare TrNHB 444; Smith DB 2nd ed. FITCHES PostHastings DB ID.); — plant with small black acrid seeds, used as condiment: absolute ׳קIsa 28:25; Isa 28:27 (twice in verse).