From Middle English quoten, coten (“to mark (a book) with chapter numbers or marginal references”), from Old French coter, from Medieval Latin quotāre (“to distinguish by numbers, number chapters”), itself from Latin quotus (“which, what number (in sequence)”), from quot (“how many”) and related to quis (“who”). The sense developed via “to give as a reference, to cite as an authority” to “to copy out exact words” (since 1680); the business sense “to state the price of a commodity” (1866) revives the etymological meaning. The noun, in the sense of “quotation,” is attested from 1885; see also usage note, below.