extortion

nouns

an exorbitant charge
is derived from
is a type of (narrower)
a price that is too high
unjust exaction (as by the misuse of authority)
"the extortion by dishonest officials of fees for performing their sworn duty"
is derived from
is derived from
is a type of (narrower)
act of demanding or levying by force or authority
"exaction of tribute"; "exaction of various dues and fees"
the felonious act of extorting money (as by threats of violence)
is derived from
is derived from
is a type of (narrower)
a serious crime (such as murder or arson)