English
runproof
From run + -proof.
Formed from run + -proof
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 Not susceptible to runs.
Language periods are conventional ranges, not dates for this word.
Etymograph / runproof