† cordi-in derivatives, formerly not infrequent for cardi- from Gr. καρδία heart, on account of the identity of meaning and greater familiarity of the Latin cor, cord-: e.g.cordialgic, cordignostic (properly cardiognostic), cordiology.1659C. Noble Inexped. of Exped. 4, I shall leave that to the great Cordignostick that is above.1725Bradley Fam.Dict. II. s.v.Stomach, A Cordialgick Pain.1817Blackw. Mag. I. 38 Why may not the human heart be registered in a good sized quarto volume..and be made the basis to a system of Cordiology.Ibid., To expose her heart..to the manipulation of a cordiologist.