ETYM Latin exorbitans, -antis, p. pr. of exorbitare to go out of the track; ex out + orbita track: cf. French exorbitant. Related to Orbit.
Greatly exceeding bounds of reason or moderation; SYN. extortionate, outrageous, steep, unconscionable, usurious.

ETYM From Usury.
1. Practicing usury; taking illegal or exorbitant interest for the use of money.
2. Partaking of usury; containing or involving usury.