EQUIV'ALENCE, noun [Latin oequus, equal, and valens, from valeo, to be worth.] 1. Equality of value; equal value or worth. Take the goods and give an equivalence in corn. 2. Equal power or force. [To equivalence a verb, used by Brown, has not gained currency.]
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI