English
mailboy
From mail + boy.
Proto-Germanic *malhō ‘leather bag’
Frankish *malhu ‘bag’
Old French male ‘bag, wallet’
Anglo-Norman male
Middle English male ‘bag’
English mail
Proto-Indo-European *bʰā-
…
Proto-Germanic *bōjô ‘younger brother’
Proto-West Germanic *bōjō
Old English *bōia ‘boy’
Middle English boye ‘servant, commoner, knave, boy’
English boy
Today it means
noun A man employed to deliver postal mail within a organization.
Language periods are conventional ranges, not dates for this word.
Etymograph / mailboy