Strong's H3584 · Hebrew

kachash

kaw-khash'

a primitive root; to be untrue, in word (to lie, feign, disown) or deed (to disappoint, fail, cringe)

Scholarly Lexicons

Brown-Driver-Briggs (BDB)

 H3584 כָּחַשׁ be disappointing , deceive , fail , grow lean  

Brown-Driver-Briggs Hebrew Lexicon (BDB), 1906 — public domain