1) "'Lisa' is a name derived from Elizabeth. It was/is most popular in the English-speaking world among females born in the 1960s and has slowly declined in popularity since." Source and further information: http://en.wikipedia.org/wiki/Lisa "Elizabeth or Elisabeth is the Greek form Ελισ(σ)άβετ Elis(s)avet of the Hebrew female name Elisheva, meaning "my God is an oath," "my God is abundance," "God's promise," "oath of God," or "I am God´s daughter." For more information about the name, see Elizabeth (given name). Elizabeth and Elisabeth are the parent unit names of Elsa, Lisa, Lilly, Emily, Isabel, Isabella, and Ella." Source and further information: http://en.wikipedia.org/wiki/Elizabeth 2) "Origin: English Meaning: Diminutive of Elizabeth: Oath of God. My God is bountiful. Lisa is often used as an independent first name. Origin: German Meaning: Devoted to God. Origin: Greek Meaning: Diminutive of Elizabeth: From the Hebrew Elisheba, meaning either oath of God, or God is satisfaction. Also, the lilly flower. Origin: Hebrew Meaning: Diminutive of Elisabeth or Elizabeth, from Elisheba, meaning either oath of God, or God is satisfaction. Also a diminutive of Bethia (daughter or worshipper of God), and of Bethany, a New Testament village near Jerusalem." Source and further information: http://www.andythenamebender.com/name-meanings/Lisa.htm