English
intercommunicate
From inter- + communicate.
A compound of inter- + communicate
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Proto-Indo-European *mey- ‘to change’
Proto-Indo-European *ḱom-moy-ni-s
Proto-Italic *kommoinis ‘common’
Old Latin co(m)moinis
Latin commūnis ‘common’
English communicate
Today it means
verb To communicate mutually, one with another.
Language periods are conventional ranges, not dates for this word.
Etymograph / intercommunicate