What does Xanthe mean?
From Greek 'xanthos' meaning 'yellow, golden-yellow, fair'. A colour term (golden-yellow / fair-haired), not the metal gold; used as a mythological epithet in ancient Greek.
What does Eirini mean?
Modern Greek form of Irene, from Greek 'eirene' (εἰρήνη) meaning 'peace'; also the Greek goddess personifying peace.