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insomnia

in·som·ni·a

insomnia

 
pronunciation:
ihn sam ni
features:
Word Parts
part of speech: noun
definition: difficulty in getting to sleep, esp. as a persistent problem.
She's generally tired because she suffers from insomnia.
 
derivation: insomnious (adj.)
Word Parts
The word insomnia contains the following parts:
in-2 Latin prefix that means not, without
Show wordsHide wordsMore about this word part:
The prefix in-2 occurs in Latin loanwords and attaches to Latinate bases. The bases of most words prefixed with in-2 are independent adjectives (inadvertent , incognizant ), although the base adjective may no longer be in widespread use (as with incessant ). Exceptions include iniquitous and indignant . -in2 has multiple forms, as the 'n' sound in in-2 assimilates to the initial sound of the base to which it is attached. See the assimilated forms ig-, il-2, im-2, and ir-2.
somn Latin root that means sleep
synonyms:
hypn