Strong’s Hebrew
H6705 — tsachach
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
צָחַח
tsachach — pronounced tsaw-khakh
a primitive root; to glare, i.e. be dazzling white:--be whiter.
1 occurrence in the KJV.
Lamentations 4:7
Her Nazarites were purer than snow, they were whiter than milk, they were more ruddy in body than rubies, their polishing was of sapphire: