"disease of alcohol addiction," by 1882, from alcohol + -ism, or else from Modern Latin alcoholismus, coined in 1852 by Swedish professor of medicine Magnus Huss to mean what we now would call "alcohol poisoning, effects of excessive ingestion of alcohol." In earlier times, alcohol addiction would have been called habitual drunkenness or some such term.
)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}