Why is the ninth month called September?
"inflammation of the eye, conjunctivitis," late 14c., from Medieval Latin obtalmia, Old French obtalmie, from Late Latin ophthalmia, or directly from Greek ophthalmia, from ophthalmos (see ophthalmo-) + -ia.
ophthalmia oph·thal·mi·a (ŏf-thāl'mē-ə, ŏp-)n.
Severe, often purulent, conjunctivitis.
Inflammation of the deep eye structures. Also called ophthalmitis.