Origin of rosinME, altered from MFr, resine, resin
transitive verbros·ined, ros·in·ing, ros·ins
Origin of rosinMiddle English variant of resin ; see resin .
(countable and uncountable, plural rosins)
(third-person singular simple present rosins, present participle rosining, simple past and past participle rosined)
- To apply rosin to something.
- We waited expectantly as the guest violinist rosined up his bow in preparation to playing.