A small portion, amount, or allowance. (Merriam – Webster)
A very small amount of money, especially money received as payment, income, or a present. (Cambridge Dictionary)
A small amount or share. (Dictionary.com)
A very small or inadequate amount of money. (Oxford Dictionaries)
CEO pay: Millions at the top, a pittance below.
Vulnerable face upheaval for want of a relative pittance.