1657, "to hack, chop," from Fr. hacher, from O.Fr. hache "axe." The noun "stew" is first recorded 1662, from the verb. Hash, short for hashish, is first recorded 1959 Amer.Eng. Hash browns, is short for hash browned potatoes (1917), with the -ed omitted, as in mash potatoes. The hash marks on a football field were so called 1960s, from similarity to hash marks, armed forces slang for "service stripes on the sleeve of a military uniform" (1909), supposedly called that because they mark the number of years one has had free food (hash) from the Army.