To pilfer; filch; steal.
"The thief managed to mitch a silver spoon from the kitchen drawer while no one was looking."
A diminutive of the male given name Mitchell
"Mitch is short for his full name, Mitchell, which he prefers to use in formal settings."
From Middle English mychen, müchen ("to rob, steal, pilfer"), from Old English myċċan ("to steal"), from Proto-West Germanic mukkjan, from Proto-Germanic mukjaną ("to waylay, ambush, hide, rob"), from Proto-Indo-European (s)mūg-, *(s)mewg- ("swindler, thief").