Perennial

pe-ren′i-al, adj. lasting through the year: perpetual: never failing: growing constantly: ( bot. ) lasting more than two years: of insects, living more than one year.— n. a plant which lives more than two years.— v.i. Perenn′ate , to live perennially.— n. Perennā′tion .— adv. Perenn′ially . [L. perennis — per , through, ann us , a year.]