English
marless
From mar + -less.
Formed from mar + -less
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 Without mars; unspoiled.
Language periods are conventional ranges, not dates for this word.
Etymograph / marless