形容詞 exorbitant:

1. greatly exceeding bounds of reason or moderation
   同義詞：extortionate, outrageous, steep, unconscionable, usurious

1. The practice of lending money and charging the borrower interest, especially at an exorbitant or illegally high rate.
   高利貸借給他人錢(qián)并要求貸者付很高的利息的做法，尤其利息異常地或非法地高

ex.or.bi.tant

adj.（形容詞）
Exceeding all bounds, as of custom or fairness:
不合法的：超過(guò)了習(xí)慣或正當(dāng)?shù)南薅鹊模?/br>例句：
exorbitant prices.See Synonyms at excessive
過(guò)高的價(jià)格參見(jiàn) excessive

來(lái)源：
Middle English [aberrant, flagrant]
中古英語(yǔ) [越軌的，聲名狼藉的]
from Old French [excessive, extreme]
源自 古法語(yǔ) [過(guò)分的，極端的]
from Late Latin exorbit3ns exorbitant- [present participle of] exorbit3re [to deviate]
源自 后期拉丁語(yǔ) exorbit3ns exorbitant- [] exorbit3re的現(xiàn)在分詞 [有偏差]
ex- [ex-]
ex- [前綴，表.出自….]
orbita [path, track] * see orbit
orbita [路線，軌跡] *參見(jiàn) orbit

【引伸】
exor.bitantly
adv.（副詞）