The Collaborative International Dictionary of English v.0.48:

Khan \Khan\, n. [Per. kh[=a]n, kh[=a]nah, house, tent, inn.]
   An Eastern inn or caravansary. [Written also kawn.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Kawn \Kawn\, n.
   An inn. [Turkey] See Khan.
   [1913 Webster]