The name Olivia, used by William Shakespeare in his comedy 'Twelfth Night' (1602), is a rare name from Shakespeare's time. It may have been derived from Oliva or Oliver, or directly from the Latin word 'oliva' meaning 'olive'. In the play, Olivia is a noblewoman wooed by Duke Orsino but falls in love with his messenger Cesario, who is actually Viola in disguise. The name has been used in the English-speaking world since the 18th century, gaining popularity in the latter half of the 20th century,...