שִׂיב (śîb) is
a Hebrew verb
meaning be hoary. It appears
2 times
in 2 books of the Hebrew Bible
(Strong's H7867).
Also rendered
be gray
Same Hebrew root (TWOT 2253)
Range of meaning (TWOT 2253)be hoary; become aged, grow gray; grayheaded
Full entry: Brown-Driver-Briggs and Strong's
שִׂיבverb: be hoary
Strong's H7867שִׂיב: properly, to become aged, i.e. (by implication) to grow gray KJV:(be) grayheaded.
Meanings: Brown-Driver-Briggs (1906) and Strong's Hebrew Dictionary (1890), public domain, via the Open Scriptures Hebrew Bible Project (CC BY 4.0). TWOT numbers for reference only.