hendecasyllabic/hɛnˌdɛk.ə.sɪˈlæb.ɪk/EtymologyBorrowed from Latin hendecasyllabus, from Ancient Greek ἑνδεκασύλλαβος (hendekasúllabos), from ἕνδεκα (héndeka, “eleven”) + συλλαβή (sullabḗ, “syllable”).hendecasyllabic means having eleven syllables. Lexicurio rates it Sui generis — a strength score of 87 out of 100.hendecasyllabic is pronounced /hɛnˌdɛk.ə.sɪˈlæb.ɪk/.adjHaving eleven syllables.nounA word or line of eleven syllables.