English

interoperator

From inter- + operator.

Proto-Indo-European *h₁én ‘in’

Proto-Indo-European *h₁entér ‘between’

Proto-Italic *n̥ter ‘between’

Latin inter ‘between’

Proto-Indo-European *h₃ep- ‘to work, toil, make’

…

Latin opera

Latin operātus ‘having worked, laboured, toiled’

Latin operor ‘work, labour’

Latin operātor

Today it means

adj Between operators.

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

Etymograph / interoperator