porte-crayon
/ˌpɔːtˈkreɪɒn/ /ˌpɔːtˈkreɪən/Now historical
noun
An instrument used to hold a pencil, lead, etc., for drawing, usually a metal tube split at the end and tightened by a sliding ring.
Origin
Early 18th century; earliest use found in Thomas Page (fl. 1720). From French porte-crayon from porte- + crayon.