haul (v.) Look up haul at Dictionary.com
1580s, hall, variant spelling of Middle English halen "to drag, pull" (see hale (v.)), representing a change in pronunciation after c. 1200. Spelling with -au- or -aw- is from early 17c. Related: Hauled; hauling. To haul off "pull back a little" before striking or otherwise acting is American English, 1802.
haul (n.) Look up haul at Dictionary.com
1660s, "act of hauling," from haul (v.). Meaning "something gained" is from 1776, perhaps on notion of "drawing" a profit, or of the catch from hauling fishing nets. Meaning "distance over which something must be hauled" (usually with long or short) is attested from 1873.