English

infacility

From in- + facility.

A compound of in- + facility

Proto-Indo-European *h₁én ‘in’

Proto-Germanic *in ‘into’

English in-

Proto-Indo-European *dʰeh₁- ‘to put, do’

…

Latin facilis ‘doable, easy’

Latin facilitās ‘ease, facility’

Middle French facilité

Middle English facilite

Today it means

noun The inability to quickly adjust one’s focus when looking from near to far (or the converse).

Language periods are conventional ranges, not dates for this word.

Etymograph / infacility