perennis

perennis e (ablsing. perenne, O.), adj.with comp.

per+annus, lasting throughout the year, everlasting, never failing, unceasing, perpetual, perennial : aquae: fons, Cs.: amnis, L.: cursus stellarum: adamas, O.: monumenta, O.: monumentum aere perennius, more enduring , H.—Fig., unfailing, uninterrupted, continual, perpetual : maiorum virtus: motio.