from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A member of a duumvirate.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One of two persons jointly exercising the same office in Republican Rome.
from the GNU version of the Collaborative International Dictionary of English
- n. One of two Roman officers or magistrates united in the same public functions.
from The Century Dictionary and Cyclopedia
- n. In Roman history, one of two officers or magistrates united in the same public function.
Latin : duum, genitive pl. of duo, two; see dwo- in Indo-European roots + vir, man; see wī-ro- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
Latin duo ("two") + vir ("man"). (Wiktionary)