INSOMNIA


Meaning of INSOMNIA in English

/ ɪnˈsɒmniə; NAmE -ˈsɑːm-/ noun

[ U ] the condition of being unable to sleep :

to suffer from insomnia

—see also sleeplessness

••

WORD ORIGIN

early 17th cent.: from Latin , from insomnis sleepless, from in- (expressing negation) + somnus sleep.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.