spectrally

adv

Etymology: Etymology tree English spectral Proto-Indo-European *leyg-der. Proto-Germanic *līkąder. Proto-Germanic *-līkaz Proto-Germanic *-ê Proto-Germanic *-līkê Proto-West Germanic *-līkē Old English -līċe Middle English -ly English -ly English spectrally From spectral + -ly.

1. In a spectral manner; like a ghost.

   “Beyond the fence the forest stood up spectrally in the moonlight, and through the dim stir, through the faint sounds of that lamentable courtyard, the silence of the land went home to one’s very heart, - its mystery, its greatness, the amazing reality of its concealed life.”

2. In terms of a spectrum.

   “Nautilus come from deepwater where the light is spectrally blue and not very bright.”