sha.cha.rut denotes dark hair, named with youth as something called vanity.

The sole attested use names dark hair alongside youth in a statement that both are vanity.

1. Dark hair associated with youth · dominant

   In Ecclesiastes 11:10, the feminine singular absolute noun occurs in the clause that names youth and dark hair together; the APB renders the verse, “for youth and the dark hair are vanity.”

   Ecclesiastes 11:10

In the Anselm Project Bible: In Ecclesiastes 11:10, the APB presents the term in the phrase “youth and the dark hair.” The clause rather than the English phrase alone identifies its contribution.