What does Elpida mean?
The Modern Greek form of the ancient name Elpis, from Greek 'elpis' ('hope'). The Slavic Nadezhda was coined as a translation of this Greek word.
What does Ianthe mean?
From Greek 'ion' (violet) + 'anthos' (flower), giving 'violet flower'. Borne by a figure in Greek mythology (an Oceanid) and used by Lord Byron. A minority of sources offer alternative roots, but 'violet flower' is the standard etymology.