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Dictionary of Medieval Names
from European Sources

Ido m. A hypocoristic of any of various names beginning with Old Frankish id, of uncertain origin but perhaps related to Old Icelandic 'work, business, occupation', per Morlet.

Germany
Latin
816 Hitto (nom) FRA-XXXL 9; 822x875 Hiddi (unc) TradCorb §81, Hiddone (abl) ibid. §51
Italy
Latin
827 Hitto (nom) FRA-XXXL 11, Hittone (abl) ibid. 11; 828 Hittone (abl) ibid. 12, Hittonis (gen) ibid. 12
Cite as: S.L. Uckelman. "Ido". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2019, no. 1. http://dmnes.org/2019/1/name/Ido.