n. & v.
--n. resin, esp. the solid residue after distillation of oil of turpentine from crude turpentine.
--v.tr. (rosined, rosining)
1. rub (esp. the bow of a violin etc.) with rosin.
2 smear or seal up with rosin.
Derivatives:
rosiny adj.
Etymology: ME, alt. f. RESIN