REPEL'LENCY, noun 1. The principle of repulsion; the quality of a substance which expands or separates particles and enlarges the volume; as the repellency of heat. 2. The quality that repels, drives back or resists approach; as the repellency of the electric fluid. 3. Repulsive quality.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI