English
marproof
From mar + -proof.
Formed from mar + -proof
Proto-Indo-European *mers- ‘to annoy, disturb, neglect, forget, ignore’
Proto-Germanic *marzijaną ‘to disturb, hinder’
Old English mierran ‘to mar, disturb, confuse’
Middle English merren ‘to disturb, hinder, or prevent’
English mar
Today it means
adj Resistant to being marred.
Language periods are conventional ranges, not dates for this word.
Etymograph / marproof