11 letters · 16 points in Scrabble
adjective of or related to the amaranth plant
adjective of an imaginary flower that never fades
originCoined by Milton, originally meaning "unfading", as amaranth + -ine, from Ancient Greek ἀμάραντος (amárantos, “unfading”). Later used for color. First attested in the 1660s.
Etymology from Wiktionary, CC BY-SA 3.0