Merriam-Webster Collegiate Dictionary - saw

 I. past of see  II. noun  Etymology: Middle English ~e, from Old English sagu; akin to Old High German sega ~, Latin secare to cut  Date: before 12th century a hand or power tool or a machine used to cut hard material (as wood, metal, or bone) and equipped usually with a toothed blade or disk  • ~like adjective  III. verb  (~ed; ~ed or ~n; ~ing)  Date: 13th century  transitive verb  1. to cut with a ~  2. to produce or form by cutting with a ~  3. to slash as though with a ~  intransitive verb  1.  a. to use a ~  b. to cut with or as if with a ~  2. to undergo cutting with a ~  3. to make motions as though using a ~ ~ed at the reins  • ~er noun  IV. noun  Etymology: Middle English ~e, from Old English sagu discourse; akin to Old High German & Old Norse saga tale, Old English secgan to say — more at say  Date: before 12th century maxim, proverb