The Collaborative International Dictionary
Antirentism
Antirenter \An`ti*rent"er\, n. One opposed to the payment of rent; esp. one of those who in 1840-47 resisted the collection of rents claimed by the patroons from the settlers on certain manorial lands in the State of New York. -- An`ti*rent"ism, n.
Wiktionary
antirentism
n. (context US historical English) The beliefs of the antirenters.