Where does “mop up” come from?

mop up (English) comes from English up, from Middle English up, from Old English upp, from Proto-West Germanic *upp.

mop up (English): To clean up with a mop, rag, sponge, or other...

Definitions

  1. To clean up with a mop, rag, sponge, or other...

Ancestry of “mop up”, step by step

mop up traces back through two separate lines of ancestry.

via English up

StepLanguageWordMeaning
1EnglishupAway from the surface of the Earth or other...
2Middle Englishupto a vertical axis
3Old Englishuppup; upstairs
4Proto-West Germanic*upp

via English mop

StepLanguageWordMeaning
1EnglishmopAn implement for washing floors, or the like,...
2Middle Englishmappe
3Walloonmappenapkin
4Latinmappanapkin; starting signal; map
Every word from Proto-West Germanic *uppEvery word from Old English uppEvery word from Middle English up
mop up — Etymology, Origin & Word History | Etymology Explorer