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
theirs (pron.)
[theirs 词源字典]
possessive pronoun, "their own," early 14c., from
their
+ possessive
-s
, on analogy of
his
, etc. In form, a double possessive.
[theirs etymology, theirs origin, 英语词源]
[theirs 词源字典]