contagion - Dictionary definition and meaning for word contagion
contagion - CONTAminated + GIve(prani/person)....spread infection
contag(sounds like Contact) so when u come in contact wd contagion disease it spreads.
When you come in a contact of disease, it can be spread in the region
kaun(CON) tha(TA) ji(gion) jo apko beemari laga gaya