What does Chrysanthe mean?
Greek compound of 'chrysos' (gold) and 'anthos' (flower), meaning 'golden flower' — the root of 'chrysanthemum'. Literal gold element combined with flower.
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.