11 letters · 17 points in Scrabble
noun (prosody) a line of verse that has the full number of syllables
adjective (verse) metrically complete; especially having the full number of syllables in the final metrical foot
originFrom Late Latin acatalēcticus, from Ancient Greek ἀκατάληκτος (akatálēktos, “leaving off”).
Etymology from Wiktionary, CC BY-SA 3.0