Sunday, December 19, 2010

insomnia


insomnia |inˈsämnēə|
noun
habitual sleeplessness; inability to sleep.
DERIVATIVES
insomniac |-nēˌak| noun & adjectiveORIGIN early 17th cent.: from Latin, from insomnis‘sleepless,’ from in- (expressing negation) + somnus‘sleep.’
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