Definify.com
Webster 1913 Edition
Duumvirate
Du-um′vi-rate
,Noun.
[L.
duumviratus
, fr. duumvir
.] The union of two men in the same office; or the office, dignity, or government of two men thus associated, as in ancient Rome.
Webster 1828 Edition
Duumvirate
DUUMVIRATE
,Noun.