Merriam-Webster Collegiate Dictionary - outlaw

 I. noun  Etymology: Middle English ~e, from Old English utlaga, from Old Norse utlagi, from ut out (akin to Old English ut out) + lag-, log law — more at out, law  Date: before 12th century  1. a person excluded from the benefit or protection of the law  2.  a. a lawless person or a fugitive from the law  b. a person or organization under a ban or restriction  c. one that is unconventional or rebellious  3. an animal (as a horse) that is wild and unmanageable  • ~ adjective  II. transitive verb  Date: before 12th century  1.  a. to deprive of the benefit and protection of law ; declare to be an ~  b. to make illegal ~ed dueling  2. to place under a ban or restriction  3. to remove from legal jurisdiction or enforcement  • ~ry noun