the word turkey originates from a historical case of mistaken identity. guinea fowl, imported to europe through turkish merchants, were popularly called turkey cocks or turkey hens. when european colonists encountered the similar-looking but distinct north american bird, they applied the same name. the country name turkey itself derives from the medieval latin turchia, meaning land of the turks. thus, the bird's name is a toponym that reflects early modern trade routes and european geographical perceptions, not the bird's actual origin.

the word is a simplex loanword. it is not productively formed from smaller, meaningful english morphemes.