the.com/letting go

means The act of releasing your hold on something — a person, a grievance, a hope, or control itself — and allowing it to pass out of your grasp.

from A plain marriage of two old Germanic words. "Let" comes from Old English 'lætan,' meaning to allow or permit — though, oddly, the same root once also meant to hinder (a sense surviving in legal phrases like "without let or hindrance"). "Go" is from Old English 'gan,' to move or depart. Joined as a phrasal verb, "let go" simply means to permit something to leave — and over centuries the literal loosening of fingers softened into the figurative loosening of the heart.