† subˈsiduous,a.Obs.rare—1. [irreg.f. L. subsidium subsidy n. or F. subside subside n.: see -uous.] Assisting, subsidiary. 1490Caxton Eneydos xix. 71/29 Y⊇ subsiduous [orig. F. subcide] modre that hath made the to be norysshed..wyth the mylke of the tygres of Yrcanye.