cognominal /kɒɡˈnɒmɪnəl/adjective 2noun 2forms 1 adjective2 •Of or relating to a cognomen. •Bearing the same name.... is the pole cognominal with the pole of the magnet; and inasmuch as the cognominal poles of magnets repel each other, so are we to conceive this one also as repelled by the pole of the magnet. — 1846 noun2 •A name (sometimes especially one's cognomen or family name).POSY MAY: (Grins at HESTER.) I was borned in May, de month of posies. My full cognominal is Posy May Purdy. — 1940 •(no longer used) One bearing the same name.Different-named Fractions, reduced to cognominals, or Same-named [Fractions], and withall added and Subducted. — 1649 formscognominals
