PROPEN'SION PROPENS'ITY, noun [Latin propensio.] 1. Bent of mind, natural or acquired; inclination; in a moral sense; disposition to any thing good or evil, particularly to evil; as a propensity to sin; the corrupt propensity of the will. It requires critical nicety to find out the genius or propensions of a child. 2. Natural tendency; as the propension of bodies to a particular place. [In a moral sense, propensity is now chiefly used.]
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI