Akademik

Theresa
Theresa f
English: of problematic origin. The name seems to have been first used in Spain and Portugal, and, according to tradition, was the name of the wife of St Paulinus of Nola, who spent most of his life in Spain; she was said to have originated (and to have derived her name) from the Greek island of Thēra. However, this theory is neither factually nor etymologically reliable.
Cognates: Irish Gaelic: Treasa. French: Thérèse (also sometimes used in the English-speaking world in honour of St Thérèse of Lisieux, Marie Françoise Thérèse Martin, 1873–97). Spanish, Italian: TERESA (SEE Teresa). German: Theresia (much used in the combination Maria Theresia in families claiming connection with the royal Habsburg line; also occasionally used in the English-speaking world).
Short form: Spanish: Tere.
Pet forms: English: Terri; TESSA (SEE Tessa), Tess. Spanish: Teresita, Tete. German: Resi, Reserl, Resli.

First names dictionary. 2012.