English
aniridia
From an- + irido- + -ia.
Formed from an- + irido- + -ia
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 rare congenital condition characterized by the underdevelopment of the iris of the eye.
Language periods are conventional ranges, not dates for this word.
Etymograph / aniridia