Late 17th century; earliest use found in Richard Burthogge (bap. 1638, d. 1705), philosopher. As adjective from (i) post-classical Latin heureticus inventive.
Definition of heuretic in US English:
heuretic
(also euretic)
adjectivehjʊəˈrɛtɪk
Of or relating to discovery or invention.
Origin
Late 17th century; earliest use found in Richard Burthogge (bap. 1638, d. 1705), philosopher. As adjective from (i) post-classical Latin heureticus inventive.