ophthalmogeometry

Etymology tree Ancient Greek ὀφθᾰλμός (ophthălmós)der. English ophthalmo- Pre-Greek der. Proto-Hellenic *gayader. Ancient Greek γαῖᾰ (gaîă)clip. Ancient Greek γῆ (gê) Ancient Greek -ο- (-o-) Ancient Greek γεω- (geō-) Proto-Indo-European *meh₁- Proto-Indo-European *-tḗr Proto-Indo-European *-trom Proto-Hellenic *-tron Ancient Greek -τρον (-tron) Ancient Greek μέτρον (métron) Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-i-eh₂ Proto-Hellenic *-íā Ancient Greek -ία (-ía) Ancient Greek -μετρίᾱ (-metríā) Ancient Greek γεωμετρῐ́ᾱ (geōmetrĭ́ā)der. Latin geōmetriader. Old French geometriebor. Middle English gemetry English geometry English ophthalmogeometry From ophthalmo- + geometry.

来源：wiktionary