The Collaborative International Dictionary of English v.0.48:

Zamindar \Zam`in*dar"\, n. [Hind. zem[imac]nd[=a]r,
   zam[imac]nd[=a]r, a landholder, Per. zam[imac]nd[=a]r;
   zam[imac]n land d[=a]r holding.]
   A landowner; also, a collector of land revenue; now, usually,
   a kind of feudatory recognized as an actual proprietor so
   long as he pays to the government a certain fixed revenue.
   [Written also zemindar.] [India]
   [1913 Webster] Zamindary

The Collaborative International Dictionary of English v.0.48:

Zemindar \Zem`in*dar"\, n.
   Same as Zamindar.
   [1913 Webster] Zemindary