sightless

the word "sightless" is a transparent english compound formed from the native germanic root "sight" and the privative suffix "-less". the old english noun sihþ evolved from the proto-germanic verb root sehwaną meaning 'to see', which itself descends from the proto-indo-european root sekʷ- meaning 'to see, to follow'. the suffix "-less" originates from the old english adjective lēas, meaning 'free from, devoid of'. the literal construction "devoid of sight" logically evolved into its primary modern meaning of "blind", and by extension, to describe things that are invisible or imperceptible to the eye.

Structure: sight (vision) + less (without) "sight" is from old english gesiht, sihþ (thing seen, vision, faculty of sight), of germanic origin. "less" is an old english suffix -lēas, meaning 'devoid of, free from'.