Exorbitant (adjective)
Exceeding proper limits; extravagant; excessive or unduly high.
“You also have to pay exorbitant interest if you have credit card debt.”
Exhorbitant (adjective)
misspelling of exorbitant
Wiktionary
Exorbitant (adjective)
(of a price or amount charged) unreasonably high
“some hotels charge exorbitant rates for phone calls”
Oxford Dictionary