Strong’s Hebrew
H7839 — shacharuwth
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
שַׁחֲרוּת
shacharuwth — pronounced shakh-ar-ooth
from 7836; a dawning, i.e. (figuratively) juvenescence:--youth. see H07836
1 occurrence in the KJV.
Ecclesiastes 11:10
Therefore remove sorrow from thy heart, and put away evil from thy flesh: for childhood and youth are vanity.