Definitions

1. verb

to free or relieve someone or something from a burden or weight, such as a debt, a responsibility, or a mental strain

“The inheritance was a heavy burden, but the lawyer’s help unburthened her of her worries.”

2. noun

the act of freeing or relieving someone or something from a burden or weight

“The unburthening of the heavy load was a great relief to the weary traveler.”