Search:
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
infiltrate (v.)
1758, of fluids, from
in-
(2) "in" +
filtrate
(v.). Perhaps modeled on French
infiltrer
(16c.). Military sense of "penetrate enemy lines" attested from 1934. Related:
Infiltrated
;
infiltrating
.
