adjective see: per- Date: 1644 present at all seasons of the year, persisting for several years usually with new herbaceous growth from a perennating part , 3. persistent , enduring , continuing without interruption ; constant , perpetual , regularly repeated or renewed ; recurrent , see: continual ~ noun ~ly adverb
PERENNIAL
Meaning of PERENNIAL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012