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unnerve (v.)
[unnerve 词源字典]
1620s, "to destroy the strength of," from
un-
(2) "reverse, opposite of" +
nerve
(v.). Meaning "to deprive of courage" is recorded from 1704. Related:
Unnerved
;
unnerving
.
[unnerve etymology, unnerve origin, 英语词源]
[unnerve 词源字典]