9 letters · 14 points in Scrabble
noun an infant's repetition of sounds uttered by others
noun (psychiatry) mechanical and meaningless repetition of the words of another person (as in schizophrenia)
originFrom echo- + -lalia; echo- ultimately from Ancient Greek ἠχώ (ēkhṓ, “reflected sound, echo”), -lalia from λαλιά (laliá, “talk, chat”).
Etymology from Wiktionary, CC BY-SA 3.0