10 letters · 20 points in Scrabble
noun a rotary duplicator that uses a stencil through which ink is pressed (trade mark Roneo)
verb print copies from (a prepared stencil) using a mimeograph
originA genericization from a trade name coined by A. B. Dick in 1889. From μῖμος (mîmos) + -γράφος (-gráphos); by surface analysis, mimeo + -graph (but diachronically, mimeo came from mimeograph, not the reverse).
Etymology from Wiktionary, CC BY-SA 3.0