Split it as Ad-very-sorry.. U never say sorry to ur opponent or enemy..
concentrate on ADVERSE : one who gives us adverse effects i.e. opponents
dis sounds like:anniversary..so opposite sex i.e,opponents celebrate..
adversary brings us to adverse situation.
Adversary sounds like Adviser, generally Enemies,opponent make sarcastic comments, Like for eg in the film Troy, King Agmemnon comments to many of his enemies to surrender the army to him, so that he cud use them whenever he wants
ADVERSARY<===> à¤µà¤¿à¤°à¥‹à¤§à¥€ (pr. \\virodhi \\ )[Noun] Example:Tenali Ram defeated all his adversaries by his intelligence.