Perennial

αέναος

aénaos

(lasting or remaining active throughout the year, or all the time)

αέναος

aénaos

(continuing without cessation or intermission for several years, or for an undetermined or infinite period — see also perpetual, unceasing)

αιώνιος

aiónios

(continuing without cessation or intermission for several years, or for an undetermined or infinite period — see also perpetual, unceasing)

διηνεκής

diinekís

(continuing without cessation or intermission for several years, or for an undetermined or infinite period — see also perpetual, unceasing)

πολυετής

polyetís

(of a plant: active throughout the year, or having a life cycle of more than two growing seasons)

πολυετές

polyetés

(plant active throughout the year, or has a life cycle of more than two growing seasons)