(contāgium ī), n
com-+TAG-, infection, contagion, taint (only plur, nom . and acc; poet.): mala vicini pecoris, V.: Nulla nocent pecori, H.: terrae contagia fugit, O.: per incautum serpant volgus, V.—Fig.: lucri, H.
contāgĭum, ii, n., v. contagio. ...
A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
·noun Contagion; contagious matter. ...
Webster's Dictionary of the English Language