English
interrun
From inter- + run.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Proto-Indo-European *h₃reyH- ‘to boil, churn’
Proto-Germanic *rinnaną ‘to run’
Old English rinnan ‘to run’
Middle English rinnen ‘to run’
Middle English runnen ‘to run’
English run
Today it means
adj Between runs (in various senses).
Language periods are conventional ranges, not dates for this word.
Etymograph / interrun