Dom Perignon

trademark name, 1954 (in use from 1936), from a monk of that name (1638-1715), blind cellarmaster of the monastery of Hautvilliers near Epernay, France, who was said to have discovered the advantage of corked bottles in fermentation.

Dom was a title of authority or dignity in some monastic orders, from Latin dominus "lord, master" (from domus "house," from PIE root *dem- "house, household"). From the same source comes dom, the Portuguese and Brazilian form of don (n.).