Cathedra, cathedræ, pen. cor. Mart. A seate: a chaire.Strata & longa cathedra. Iuuenal. Molles cathedræ. Iuuenal.
Lewis and Short: Latin dictionary
căthēdra, ae, f., = kaqe/dra, a chair, a stool, esp. one furnished with cushions and supports for women, an arm-chair.I. In gen., Hor. S. 1, 10, 91; Phaedr. 3, 8, 4; Prop. 4 (5), 5, 37; Juv. 6, 91 al.; also, a sedan chair, Juv 1, 65; 9, 52 Rup. al.; cf. Dict. of Antiq.—II. Esp., a teacher's or professor's chair, Juv. 7, 203; Mart. 1, 77 fin.—Hence, B.Meton., the office of teacher: usurpare, Aus. Prof. 10, 1; also, of a bishop: tenere, Sid. Ep. 7, 4.