Renter comes from rent + -er, where rent comes from Old French rente ('income, revenue'), from Vulgar Latin rendita, from Latin reddere ('to give back, render'). The historical chain includes Old French rente, Latin reddere, and Latin dare. The quoted older senses, "income, revenue" and "to give back, render", supply the semantic anchors for renter. The formation is best read as suffixal and borrowed: the word renter carries its older form-history into a compact English lexical shape. In present English it is used as a noun, "a person who pays rent to use property". Related English forms include rent, rental, and rentee. The result is a noun whose etymology preserves both the older form and the later English specialization.