"round wooden tub," 1275, probably from M.Du. kitte "jug, tankard, wooden container," of unknown origin. Meaning "collection of personal effects," especially for traveling (originally in ref. to a soldier), is from 1785; that of "outfit of tools for a workman" is from 1851. Kit and caboodle is 1861, from boodle "lot, collection," perhaps from Du. boedel "property."