Old English mættoc, formerly said to be probably from Vulgar Latin *matteuca "club," related to Latin mateola, a kind of mallet (see mace (n.1)), but this is not certain, and synonymous Russian motyka, Polish motyka, Lithuanian matikas, as well as Old High German medela "plow," Middle High German metz "knife" suggest rather a PIE *mat- as source of the Latin, Germanic, and Slavic words. OED says similar words in Welsh and Gaelic are from English.
