insessorrare.|ɪnˈsɛsə(r)| [a. L. insessor (rare), agent-n. f.insidēre: see prec.] One who sits in or on. 1835Kirby Hab. & Inst.Anim. I. Introd. 94 In the different visions of the appearance of the Deity, as the Insessor of the chariot of the cherubim.