Why is the ninth month called September?
late 13c., "round wooden tub," perhaps from Middle Dutch kitte "jug, tankard, wooden container," of unknown origin. Meaning "collection of personal effects," especially for traveling (originally in reference to a soldier), is from 1785; that of "outfit of tools for a workman" is from 1851. Of drum sets, by 1929. Meaning "article to be assembled by the buyer" is from 1930s.
"small fiddle used by dancing teachers," 1510s, probably a shortening of Old English cythere, from Latin cithara, from Greek kithara (see guitar).
The totality; everything: the whole kit and caboodle, go hang/the whole kit and boodle of 'em
[1861+; fr 1700s British kit, ''outfit of equipment,'' plus early 1800s boodle, ''lot, collection,'' perhaps fr Dutch boedel, ''property, effects'']
small fiddle with a muted tone, carried by dancing masters in their pockets in the 16th-18th century. A last descendant of the medieval rebec, the kit evolved as a narrow, boat-shaped instrument with usually three or four strings. Later, narrow, violin-shaped kits were also built. Dancing masters used it to play the dance melody and rhythm while teaching the steps.