"generating or giving rise to ideas," 1839; see idea + -genous. A word from early psychology, apparently coined by Dr. Thomas Laycock, house surgeon to York County Hospital [Edinburgh Medical and Surgical Journal, vol. lii].
-idae
Idaho
-ide
ide
idea
ideagenous
ideal
idealism
idealist
idealistic
ideality
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}