Strong's H6663 · Hebrew

tsadaq

tsaw-dak'

a primitive root; to be (causatively, make) right (in a moral or forensic sense)

Scholarly Lexicons

Brown-Driver-Briggs (BDB)

 H6663 צָדֵק , צָדֹק vb. denom . be just , righteous  

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