English

intersession

From inter- + session.

Proto-Indo-European *h₁én ‘in’

Proto-Indo-European *h₁entér ‘between’

Proto-Italic *n̥ter ‘between’

Latin inter ‘between’

Proto-Indo-European *sed- ‘to sit’

…

Latin sedeō ‘sit’

Latin sessiō ‘a sitting’

Old French session ‘sitting’

Middle English session

Today it means

adj Between sessions.

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

Etymograph / intersession