Webster’s Revised Unabridged Dictionary · 1913 Passus Pas′sus (păs′sŭs), n.; pl. L. Passus, E. Passuses. [L., a step, a pace. See Pace.] A division or part; a canto; as, the passus of Piers Plowman. See 2d Fit. ‹ Passport Password ›