A few (/too many) ideas...
Conumbra
cocoon, conundrum, umbra
Moithai / Mothai / Moiraith / Moraith
moth, Moirai, wraith
Elumo / Elumar / Elumoth / Elumith / Elumyth / Elumbra
illuminate, Elohim, moth, lunar, St. Elmo's Fire, myth, umbra
Azrohim
astral, Azrael, Elohim
Astruga / Astrega /...