quadrigonus

quā̆drĭgōnus, a, um, adj. [quadrus, γῶνος],

• having four angles: figura, Claud. Mam. Ep. 1 med.

quadrigōnus, a, um (quattuor u. γωνία), viereckig, figura, Claud. Mam. de stat. anim. 3, 15.