Theresa[tə rē′sə, -zə]
a feminine name: dim. Terry, Tess; var. Teresa
Origin of Theresa; from French Thérèse or Portuguese Theresa ; from Classical Latin Therasia ; from uncertain or unknown; perhaps
or Te·re·sa , Saint. Known as “Theresa of Ávila.” 1515–1582.
Spanish nun and mystical writer who founded the reformed order of Carmelites (1562). Her works include The Way of Perfection, published posthumously.