con as in 'He tried to con me out of my front-row seat.'
sop
The word you are looking for is "sap."
kickback
A number of words might be considered the "opposite" of a Bribe. Perhaps Blackmail or Solicitation (of a bribe). See the thesaurus links below.
"Grease" refers to illegal payments made to influence someone's behavior or decision-making.
The word "bribe" originated from the Old French word "bribe," which meant a piece of bread or similar reward given to beggars or servants. Over time, the term evolved to refer to something given to influence or corrupt someone in a position of trust or authority.
sop
The word you are looking for is "sap."
A three letter word that ends in the letter x could be the word Hex. A hex is a witches curse or spell.
Aga
any
cheessee
dude, it's "you"
Arc
nab
"HUE"
zoa
mar