The name is biblical: Dorcas is a Greek name (Tabitha in Aramaic ). She was
a disciple of Joppa found in the Book of Acts 9:36–42 of the Bible. She was a dressmaker, who made clothes for the poor in her village. Acts recounts that when she died, the people of the village called upon Saint Peter who came to where she was being waked and raised her from the dead. (quote from wikipedia).
(Saint Dorcas is on the right in the picture, above.)