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
rocking (adj.)
[rocking 词源字典]
"moving back and forth or to and fro," late 14c., present participle adjective from
rock
(v.1). Of music, from 1949 (see
rock
(v.2)).
Rocking-horse
is first recorded 1724;
rocking-chair
is from 1766.
[rocking etymology, rocking origin, 英语词源]