Why “congruity” is a great word
CONGRUITY — [Noun] The quality of being in agreement, harmony, or appropriate correspondence. From Old French congruité, from Latin congruitāt-em, from congruus ("agreeing, suitable"). Unlike "congruence," which implies a precise, geometric alignment, or "coherence," which demands strict logical consistency, congruity is the softer, more aesthetic virtue of things belonging together. It is the stone wall that follows the hill's contour, the unforced rhythm of a conversation between old friends, and the quiet rightness of a person's character being exactly reflected in their face—a fleeting testament to those rare moments when the world, inexplicably, is as it ought to be.