Phyllis has been used by classical poets for the idealized pastoral maiden. A Greek mythological name of a woman who was turned into an almond tree, Phyllis was in the Top 100 from 1916 to 1958, reaching #24 in 1929, and has the (remote) possibility of joining other revived s-ending names like Iris. In the 'St Clare' book series by Enid Blyton Phyllis is nicknamed Fizz. Just a thought. Phyllida is a variation that sounds at once more old-fashioned and more stylish.

Phyllida, a "Masterpiece Theatre"-style appellation, seems far fresher and more unusual than Phyllis. It's green-related meaning makes it one of the prime names that mean new beginnings.

The Phillis spelling of this once-popular name lives on thanks to Phillis Wheatley, the first African-American to publish a book of poetry, in the 18th century.

Phillida is a "Masterpiece Theatre" appellation, proper to an almost comical degree yet might make an original way to honor an ancestral Phyliis. Actress Phyllida Law is the mother of Emma and Sophie Thompson.