quword
趣词
Word Origins Dictionary
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
weaken (v.)
[weaken 词源字典]
late 14c., "to become feeble," from
weak
+
-en
(1). Transitive sense from 1560s. Related:
Weakened
;
weakening
.
[weaken etymology, weaken origin, 英语词源]
[weaken 词源字典]