CONGRUITY, noun 1. Suitableness; the relation of agreement between things. There is no congruity between a mean subject and a lofty style; but an obvious congruity between an elevated station and dignified deportment. 2. Fitness, pertinence. A whole sentence may fail of its congruity by wanting a particle. 3. Reason; consistency; propriety. 4. In school divinity, the good actions which are supposed to render it meet and equitable that God should confer grace on those who perform them. The merit of congruity is a sort of imperfect qualification for the gift and reception of Gods grace. 5. In geometry, figures or lines, which when laid over one another, exactly correspond, are in congruity
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI