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Dictionary of Medieval Names
from European Sources

Joab m. Hebrew יוֹאָב 'God is father'.

The name of a Biblical nephew of King David. Wycliffite Bible (1395): Joab.

Wales
Latin
1198 Ioab (nom) Pryce-1st no. 8
Cite as: S.L. Uckelman. "Joab". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2019, no. 1. http://dmnes.org/2019/1/name/Joab.