Definition of cellar master in English:

cellar master

noun

  • A person in charge of a cellar, especially a wine cellar; (Winemaking) a person in charge of wine production from the arrival of grapes or must at the cellar, through vinification and maturation, to bottling and shipment.

Origin

Early 19th century. After German Kellermeister; compare Dutch keldermeester, Middle Low German kellermēster.