nardus noun3 •Matgrass (Nardus spp.). •(no longer used) The ointment nard.Then toke Mary a pounde off oyntment called nardus, perfecte and precious, and anoynted Jesus fete, and wept his fete with her heer, and all the housse smelled off the savre off the oyntment. — 1526 •(no longer used) The plant nard.