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
boundless (adj.)
[boundless 词源字典]
1590s, from
bound
(n.) +
-less
. Related:
Boundlessly
;
boundlessness
.
[boundless etymology, boundless origin, 英语词源]