Colophony

Origin

From Latin colophonia ("of Colophon") resina ("resin"); named after the Ionic city of Colophon, which was known as producer of hardened resin.

Full definition of colophony

Noun

1. rosin; the residue left after the distillation of oil of turpentine from liquid resin. Used in pharmaceutical preparations, soldering fluxes, and by violinists.