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insomnia
1620s,
insomnie
, from L.
insomnia
"want of sleep," from
insomnis
"sleepless," from
in-
"not" (see
in-
(1)) +
somnus
"sleep" (see
somnolence
). The modern form is from 1758.
insomniac
1877 (adj.); 1879 (n.), from
insomnia
.
Rohypnol
1995, trade name for a powerful insomnia drug.
