English
interministry
From inter- + ministry.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Proto-Italic *minosteros ‘lesser, smaller’
Latin minister ‘attendant, servant’
Latin ministerium ‘office of a minister; service’
Old French menistere
Middle English mynisterie
English ministry
Today it means
adj Between ministries.
Language periods are conventional ranges, not dates for this word.
Etymograph / interministry