Of relatively recent origin and uncertain etymology. It is first recorded in the 19th century. It may be a shortened form of Belinda, an adoption of Spanish linda ‘pretty’, or a Latinate derivative of any of various other Germanic female names ending in -lind meaning ‘weak, tender, soft’. It was popular in the 20th century, especially in the 1950s.
German: 1. from the personal name (Latin Titus, probably Etruscan in origin). The name was popular in the Middle Ages since it had been borne by a disciple of St. Paul who became bishop of Crete. 2. from a short form of a Germanic personal name (see Tittel 2).