Blindness

google

ref

Old English, of Germanic origin; related to Dutch and German blind .

wiktionary

ref

From Middle English blyndnes, blyndnesse, from Old English blindnes(“blindness”), equivalent to blind +‎ -ness.

etymonline

ref

blindness (n.)

Old English blindnysse, blendes, from blind + -ness. Figurative sense was in Old English.