a morbid condition caused by excessive caffeine intake
caffeinism in American English
(kæˈfinɪzəm, ˈkæfiˌnɪz-, ˈkæfiə-)
noun
chronic toxicity caused by excessive intake of caffeine, characterized by anxiety, irritability, palpitations, insomnia, and digestive disturbances
Word origin
[1885–90; caffeine + -ism]This word is first recorded in the period 1885–90. Other words that entered Englishat around the same time include: booster, foregut, reactor, retread, upsweep-ism is a suffix appearing in loanwords from Greek, where it was used to form action nounsfrom verbs (baptism). On this model, -ism is used as a productive suffix in the formation of nouns denoting action or practice,state or condition, principles, doctrines, a usage or characteristic, devotion oradherence, etc. (criticism; barbarism; Darwinism; despotism; plagiarism; realism; witticism; intellectualism)