 Boethius’s subdivisions had one major failure: they did not seem to accommodate the different uses of the word ‘being’ (ens). As a result, many authors used a new threefold division which included Boethius’s last two subdivisions and one more. They presented the division as a division of deliberate equivocals, and they identified deliberate equivocals with analogical terms. This threefold division of analogy was established in the thirteenth century, in response to a remark by Averroes in his commentary on the Metaphysics to the effect that Aristotle had classified ‘healthy’ as a case of relationship to one thing as an end, ‘medical’ as a case of relationship to one thing as an agent, and ‘being’ (ens) as a case of relationship to one subject. It is found in Thomas Aquinas’s own commentary on the Metaphysics, as well as in his fifteenth-century follower Capreolus. An analogical term is now seen as one which is said of two things in a prior and a posterior sense, and it is grounded in various kinds of attribution or relationship to the primary object: food is healthy as a cause of a healthy animal, a procedure is medical when applied by a medical agent, a quality has being by virtue of the existent substance that it characterizes.