Ruth \r(u)-th\ as a girl's name is pronounced rooth. It is of Hebrew origin, and the meaning of Ruth is "friend, companion". Biblical: Ruth was the young Moabite widow who said to her Hebrew mother-in-law Naomi, "Where you go, there I shall go also; your people will be my people, your God, my God". Her sentiments appealed to Victorian poets, and the name has been popular since the 17th century. Actresses Ruth Gordon, Ruth Buzzi; author Ruth Rendell.