Where does “mudflap” come from?

mudflap (English) comes from English MUD, from Dutch mud, from Middle Dutch mudde, from Latin modius, from Latin modus, from Proto-Indo-European mēd-, from Proto-Indo-European med- — to measure; to give advice; healing.

mudflap (English): A rectangular flap mounted near the wheel of a...

Definitions

  1. A rectangular flap mounted near the wheel of a...

Ancestry of “mudflap”, step by step

mudflap traces back through two separate lines of ancestry.

via English MUD

StepLanguageWordMeaning
1EnglishMUDAcronym of multi-user dungeon: an interactive...
2DutchmudAn old measure of volume, varying in content over...
3Middle Dutchmudde
4Latinmodiusmodius, a unit of dry measure of about a peck or...
5Latinmodusmeasure
6Proto-Indo-Europeanmēd-to measure
7Proto-Indo-Europeanmed-to measure; to give advice; healing

via English flap

StepLanguageWordMeaning
1EnglishflapAnything broad and flexible that hangs loose, or...
2Middle Englishflap
Every word from Proto-Indo-European med-Every word from Proto-Indo-European mēd-Every word from Latin modus