Etymology: Latin conation-, conatio act of attempting, from conari to attempt
: an inclination (as an instinct, a drive, a wish, or a craving) to act purposefully
- co•na•tive /'kO-n?-tiv, 'k?-, 'kO-nA-/ adjective
Cited from the Merriam-Webster Dictionary.
Peter Mark Roget (1779-1869)
Roget was an English physician and lexicographer. For 50 years while he practiced medicine and was secretary of the Royal Society (1827-49), Roget prepared his Thesaurus of English Words and Phrases (1852). In successive editions supervised by him, his son, his grandson, and others, it has remained a standard reference book.
(online Roget made available by the ARTFL project by Mark Olsen, University of Chicago.)