Daphnean

Daphnean is an adjective that means shy or bashful. 

Taking its name from a beautiful but demure muse, Daphnean has been around since the Late Middle English period to describe anyone who embodies the qualities of this mythical figure. Example:

That librarian was awfully Daphnean when I first met her. She was so shy and retiring that after knowing her for three weeks, I still don’t know her name.