Lewis Short
impūrĭtas | inp- (noun F) : (), , impurus
* Uncleanness (in a moral sense), pollution, impurity: cum omnes impuritates pudica in domo quotidie susciperes,Cic. Phil. 2, 3, 6; sing., Vulg. Lev. 5, 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary