Pollyanna
noun
[ pɒlɪˈanə ]
• an excessively cheerful or optimistic person.
• "what I am saying makes me sound like some ageing Pollyanna who just wants to pretend that all is sweetness and light"
Origin:
early 20th century: the name of the optimistic heroine created by Eleanor Hodgman Porter (1868–1920), American author of children's stories.
