sempiternal means eternal and unchanging. recherché- means rare, or exotic. winsome means attractive or appealing in character. Penumbra means the partially shaded outer region of the shadow cast by an object. fluoresce is light given off. allay- means put at rest mine fear's and worries.. Calming me. Figured I'd give you all words to understand this one for some who don't know loll enjoy (: thanks for reading.