Dictionary of Medieval Names
from European Sources

Guerro m. Latin werra, guerra 'war, retaliation, feud' from Frankish *werra 'riot, disturbance, quarrel'.

Cite as: S.L. Uckelman. "Guerro". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Guerro.