insomnia
noun/ɪnˈsɒmniə/
/ɪnˈsɑːmniə/
[uncountable]- the condition of being unable to sleep
- to suffer from insomnia
Word Originearly 17th cent.: from Latin, from insomnis ‘sleepless’, from in- (expressing negation) + somnus ‘sleep’.Want to learn more?
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