What is the prefix in exorbitant?
There is no prefix. If Orbitant isn't a word, there can't be a prefix on Exorbitant.
"I thought the cab fare of 200$ to get home from the airport was quite exorbitant." "Exorbitant" is used as an adjective : 'The rising costs of gasoline were regarded as exorbitant when compared to last Summer's fuel prices which were markedly lower .' We all know that she is eager to have that pretty dress for the junior prom, but the problem is that the price is a little exorbitant.