Title used in military system in the Indian subcontinent
Jemadar or jamadar is a title used for various military and other officials in the Indian subcontinent.
Etymology
The word stems from Urdu (جمعدار), which derives through Persianjam'dar from Arabicjamā‘a(t) 'muster' + Persian-dār 'holder'.
Pre-colonial
A jemadar was originally an armed official of a zamindar (feudal lord) in India who, like a military general, and along with Mridhas, was in charge of fighting and conducting warfare, mostly against the rebellious peasants and common people who lived on the lord's land.[1] Also, this rank was used among the thuggees as well, usually the gang leader.
The name inspired that of the Star Trek enslaved warrior race known as the "Jem'Hadar"
In the future of Edgar Rice Burroughs' novel The Moon Men, "Jemadar" was a title of a ruler, implied to have been brought to Earth by the Lunar invaders.