As in nombers Abſtracte, euery nomber is not a rooted nomber, but ſome certaine only emongeſt theim, ſo in nombers Coßike, all nombers haue not rootes: but ſoche onely emongeſt ſimple Coßike nombers are rooted, whoſe nomber hath a roote, agreable to the figure of his denomination.
1557, Robert Recorde, The Whetstone of Witte […], London: […] Jhon Kyngſtone, unnumbered page