theft (n.) Look up theft at Dictionary.com
mid-13c., from Old English þeofð (West Saxon þiefð) "theft," from Proto-Germanic *theubitho (cognates: Old Frisian thiufthe, Old Norse þyfð), from *theubaz "thief" (see thief) + abstract formative suffix *-itha (cognate with Latin -itatem; see -th (2)).