Early 19th century; earliest use found in Samuel Taylor Coleridge (1772–1834), poet, critic, and philosopher. From classical Latin operant-, operānsoperant: see -ancy.
Definition of operancy in US English:
operancy
noun
The quality or fact of being operant; operation.
Origin
Early 19th century; earliest use found in Samuel Taylor Coleridge (1772–1834), poet, critic, and philosopher. From classical Latin operant-, operāns operant: see -ancy.