outlaw (n.) Look up outlaw at Dictionary.com
O.E. utlaga "one put outside the law" (and thereby deprived of its benefits and protections), from O.N. utlagi (n.) "outlaw," from utlagr (adj.) "outlawed, banished," from ut "out" + *lagu, pl. of lag "law" (see law).
"[G]if he man to deaše gefylle, beo he žonne utlah" ["Laws of Edward & Guthrum," c.924]
The verb is from O.E. utlagian. Meaning "one living a lawless life" is first recorded 1880.