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insomnia (n.)
[insomnia 词源字典]
1620s,
insomnie
, from Latin
insomnia
"want of sleep," from
insomnis
"sleepless," from
in-
"not" (see
in-
(1)) +
somnus
"sleep" (see
Somnus
). The modern form is from 1758.
[insomnia etymology, insomnia origin, 英语词源]
[insomnia 词源字典]