Lexical Definition

‎מִכְנָס‎ miknâç (mik-nawce') undergarment ^H:N-M
from ‎כָּמַס‎ in the sense of hiding

breeches.

• (only in dual) drawers (from concealing the private parts)

1) underwear, drawers, trousers
1a) a priestly undergarment of linen

Brown-Driver-Briggs

[‎מִכְנָס‎] noun masculine^{Ezek 44:18} only dual (or plural) drawers (connection with above √ ‎כנס‎ obscure; Di derives from ‎כנס‎ = ‎גנז‎ cover up, hide (compare Du Isa 28:20), which Thes also compare) — only construct ‎מִָכְנְסֵי‎ — a priestly garment of linen ‎מִכְנְסֵי פִשְׁתִּים‎ Ezek 44:18 ‎מִכְנְסֵי (הַ)בָּד‎ Exod 28:42; Exod 39:28; Lev 6:3*; Lev 16:4 (all P).

Brown-Driver-Briggs References