But you don't know it
Photogenic originates from 2 Greek words, fos (φως) and -genis(-γενής). In Greek the word is φωτογενής (photogenis).
Fos means light and -genis someone that produce or produced by something. For this reason you can say a photogenic melanoma, or photogenic person.
The one means produced by light or the other produces light for this reason looks good in photographs.
Coward, from Greek ‘koth-ouros’ (harmless tail), denotes a person lacking courage in facing danger, pain, or difficulty.
Orchestra, from Greek ‘orchēstra’ (dancing space), now refers to a large ensemble of musicians playing together.
Uncover ‘bibliography’, from Greek ‘biblion’ (book) and ‘graphein’ (to write), the systematic study of written literature.