Is “Duumvir” a Scrabble word?
Yes
DUUMVIR
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Duumvir
/dju.ˈʌm.və/
noun
1.One of two persons jointly exercising the same office in Republican Rome.