permit
v.
late 15c., from Middle French permetre and directly from Latin permittere "let pass, let go, let loose; give up, hand over; let, allow, grant, permit," from per- "through" (see per) + mittere "let go, send" (see mission). Related: Permitted; permitting.
n.
"written statement of permission or license," 1714, from permit, v..
〔李〕[per-=through 通过；mit=to send 发送⇒“to send sb. through 让某人通过”→] v. allow（sb.）to do sth.；give leave to 允许；许可
〔李〕[per-=through通过；mit=to send送→“to send or let go through送其过去，让其通过”→] v. allow许可，允许