What does Estella mean?
A Latinate elaboration of Estelle, both tracing to Latin 'stella' ('star'). Charles Dickens used it for a character in 'Great Expectations'.
What does Vesta mean?
Roman goddess of the hearth and its sacred, ever-burning fire, tended by the Vestal Virgins; the Roman counterpart of Greek Hestia. The fire link is the perpetual flame central to her cult.