English
intercorrelation
From inter- + correlation.
Formed from inter- + correlation
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Middle French corrélation
English correlation
Today it means
noun mutual correlation between multiple things
Language periods are conventional ranges, not dates for this word.
Etymograph / intercorrelation