What does Hestia mean?
Name of the Greek goddess of the hearth, from Greek 'hestia' meaning 'hearth, fireside'. The fire connection is the sacred hearth-flame she personified.
What does Nerida mean?
Associated with the Greek Nereids, the sea nymphs who were daughters of the sea-god Nereus, and with Greek neros 'water'. The name itself appears to be a relatively modern coinage (a popular Australian claim of an Aboriginal 'water lily' meaning is poorly documented), so treat the sea-nymph sense as its best-supported reading.