11 letters · 13 points in Scrabble
noun a payment of part of a debt; usually paid at regular intervals
noun a part of a broadcast serial
noun a part of a published serial
originA 1732 alteration of estallment, from Anglo-Norman estaler (“fix payments”), from Old French estal (“fixed position”), from Old High German stal (“stall", "standing place”) The sense of "part of a whole produced in advance of the rest" is from 1823.
Etymology from Wiktionary, CC BY-SA 3.0