To relieve of care or suffering:
To put aside or desist from (something practiced, professed, or intended); stop doing or adhering to.
To desist in doing, practicing, following, holding, or adhering to; to turn away from; to permit to lapse; to renounce; to discontinue. [First attested from around (1350 to 1470)]
To dismiss is defined as to send someone away, or to disregard an idea or treat something as unworthy of consideration.
release, as from one's grip
Find another word for let-go. In this page you can discover 6 synonyms, antonyms, idiomatic expressions, and related words for let-go, like: release, relinquish, part-with, abandon, dismiss and let go (of).