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Dictionary of Medieval Names
from European Sources

Tedesca f. Proto-Germanic *þiudiskaz 'of the people, popular, vernacular'.

Forms with o for the initial vowel are indicative of Venetian influence.

Italy
Latin
1265x1339 Totescha (nom) BBC-Berg 23
Cite as: S.L. Uckelman. "Tedesca". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2018, no. 1. http://dmnes.org/2018/1/name/Tedesca.