FROM STRONG’S HEBREW DICTIONARY (1890)

Strong’s Hebrew Dictionary (1890) — public domain, printed whole.

kachash kaw-khash' — a primitive root; to be untrue, in word (to lie, feign, disown) or deed (to disappoint, fail, cringe):--deceive, deny, dissemble, fail, deal falsely, be found liars, (be-)lie, lying, submit selves.