English, Italian and Spanish form of Theresa.  The origin is obscure, possibly from Greek "harvest".  Theresa [q.v. for other variants] is the more usual English spelling although Catholic families generally prefer qvTeresa:f].

Tere is a Spanish short form; Teresita and Tete are Spanish pet names.

In the 1841 Census of Aberdeenshire a very rare occurrence of the spelling Taresa has been recorded.