sagamore
A high-ranking officer of the Tammany Hall political organization responsible for taking care of its property.
historical
The society elects annually thirteen sachems, which represent the original thirteen States. […] The other officers of the society are a Secretary, Treasurer, Sagamore, and Wiskinkie. The duty of the Sagamore is to take care of the property of the society; that of the Wiskinkie, to act as doorkeeper.
Where it comes from
From an Algonquian language; compare Abenaki sôgmô, sôgemô (“chief”), Mi'kmaq saqamaw (“chief”), and Penobscot sagama, sagema, sagemo, sangemo (“chief”), all ultimately from Proto-Algonquian *sa·kima·wa (“male chief”). Doublet of sachem.
Adapted from the Wiktionary entry sagamore (CC BY-SA 4.0).