rental (n.)youdaoicibaDictYouDict[rental 词源字典]
mid-14c., "rent roll;" late 14c., "income from rents," from Anglo-French rental, Medieval Latin rentale; see rent (n.1) + -al (2). Meaning "amount charged for rent" is from 1630s; that of "a car or house let for rent" is from 1952, American English.[rental etymology, rental origin, 英语词源]