English
interfaculty
From inter- + faculty.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Proto-Indo-European *dʰeh₁k-
…
Latin facilitas ‘easiness, facility, etc’
Latin facultas ‘capability, ability, skill, abundance,…’
Old French faculte
Middle English faculte ‘power, property’
English faculty
Today it means
adj Between faculties.
Language periods are conventional ranges, not dates for this word.
Etymograph / interfaculty