Rhoda can mean “rose” or “from Rhodes”. Rhodadendron, not to be confused with Rhoda Morganstern (google it, youngsters!) — a rose short-branched extension of a nerve cell from Rhodes? Rhodachrosite — a pink, red, grey, or brown mineral that consists of manganese carbonate in hexagonal crystalline form and occurs in ore veins. Rhodachrosite is a stone purported to inspire cheerfuness and lift depression. Or perhaps a road in Italy (roada?)
Cool! I learned something today.