English
anopsia
From an- + -opsia.
Formed from an- + -opsia
Proto-Indo-European *h₂en- ‘on, onto’
Proto-Germanic *ana- ‘on’
Proto-West Germanic *ana- ‘Forming verbs and adjectives from participles…’
English an-
Today it means
noun A defect in the visual field
Language periods are conventional ranges, not dates for this word.
Etymograph / anopsia