English
interpatient
From inter- + patient.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Latin patior ‘to suffer’
Latin patiens ‘suffering’
Old French pacient
Middle French patient
Middle English pacient ‘able or willing to bear pain or suffering’
English patient
Today it means
adj Between patients.
Language periods are conventional ranges, not dates for this word.
Etymograph / interpatient