Lexical Definition

‎קֶצַח‎ qetsach (keh'-tsakh) dill ^H:N-M
from an unused root apparently meaning to incise

fitches.

• fennelflower (from its pungency)

1) black cummin
1a) a plant with small black acrid seeds used as a condiment

Brown-Driver-Briggs

‎קֶ֫צַח‎ noun masculine^{Isa 28:27} black cumin (Nigella sativa Linn.; ᵐ5 μελάνθιον, ᵑ9, gith id.; compare Tr^{NHB 444}; Smith DB 2nd ed. FITCHES Post^{Hastings DB ID}.); — plant with small black acrid seeds, used as condiment: absolute ‎׳‎‎ק‎ Isa 28:25; Isa 28:27 (twice in verse).

Brown-Driver-Briggs References