ban·tam 
(b
ăn
t
əm)
n. 1. Any of various breeds of very small domesticated fowl that are often miniatures of members of larger breeds.
2. A small but aggressive and spirited person.
adj. 1. Diminutive; miniature.
2. Aggressive and spirited.
[From Bantam, English form of the name of Banten, seaport in western Java near the Sunda Strait that was important in the pepper trade in the mercantile era and where European ships would often reprovision, as with chickens of small Asian breeds.]