English
intersource
From inter- + source.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Proto-Indo-European *h₃reǵ- ‘to straighten’
…
Old French sordre ‘to rise’
Old French sors
Old French sorse ‘rise, beginning, spring, source’
Middle English sours
English source
Today it means
adj Between sources.
Language periods are conventional ranges, not dates for this word.
Etymograph / intersource