permit (v.) Look up permit at Dictionary.com
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.
permit (n.) Look up permit at Dictionary.com
"written statement of permission or license," 1714, from permit (v.).