An excrescence on the body, as a wart or a pimple.
A small sheet or scrap of paper with a hand-written note as a reminder or personal message.
A voucher or token coin used in payrolls under the truck system.
A small sheet of paper on which is written a prescription to be filled; a scrip.
A smaller cardboard counter generally used not to directly represent something but for another, more transient, purpose such as tracking or randomization.
A signed voucher or memorandum of a small debt, as for food and drinks at a club.
A debt or favor owed in return for a prior loan or favor granted, especially a political favor.
A small tool used in cleaving laths. Compare: froe.
From Middle English chitte, from Old English *ċytten, *ċietten, *ċitten, from Proto-West Germanic *kittīn, from Proto-Germanic *kittīną. Cognate with Scots chit, Low German kitte, German Kitz. See also kid.
From Middle English *chit, *chitte, from Old English ċīþ ("germ, seed, sprout, shoot"), from Proto-Germanic *kīþą ("sprout"), from Proto-Indo-European *ĝī-, *ĝey-. Cognate with Middle Dutch kiede ("sprout"), dialectal German Keid ("sprout"). scion.
From chitty, from Hindi चिट्ठी ("letter, note, written message").
Perhaps from specialized technical use of Etymology 2, above, “a bud; an excressence” (Hunter 1882).