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
steepen (v.)
[steepen 词源字典]
1847, from
steep
(adj.) +
-en
(1). Related:
Steepened
;
steepening
.
[steepen etymology, steepen origin, 英语词源]
[steepen 词源字典]