Where does “mopsy” come from?

mopsy (English) comes from English MOP, from Middle English mappe, from Walloon mappe, from Latin mappa — napkin; starting signal; map.

mopsy (English): A moppet; A slatternly, untidy woman

Definitions

  1. A moppet; A slatternly, untidy woman

Ancestry of “mopsy”, step by step

mopsy traces back through two separate lines of ancestry.

via English MOP

StepLanguageWordMeaning
1EnglishMOPGBU-57; Acronym of Massive Ordnance Penetrator
2Middle Englishmappe
3Walloonmappenapkin
4Latinmappanapkin; starting signal; map

via English Sy

StepLanguageWordMeaning
1EnglishSyAbbreviation of Seyfert galaxy., a type of AGN...
2SpanishSy
Every word from Latin mappaEvery word from Walloon mappeEvery word from Middle English mappe