piepowder.

From the following: * Late Middle English pe-poudre, pipouder (“(noun) itinerant; travelling merchant, peddler; court of piepowders; (adverb) summarily”) [and other forms], from Anglo-Norman pepoudrous, pié poudrous (“having dusty feet; an itinerant”) [and other forms] (compare Middle French pyé pouldreux (“travelling merchant”) (Poitou) (modern French pied poudreux (“one who cannot pay”) (obsolete))), from pé, pié (“foot”) + poudrous, poudrus (“dusty”); pié is derived from Old French pié (“foot”) (modern French pied), from Latin pedem, the accusative singular of pēs (“foot”), ultimately from Proto-Indo-European *ped- (“to step; to walk; to stumble; to fall”); while poudrous, poudrus (modern French poudreux (“dusty”)) is from Old French poudre (“dust; powder”) (from Latin pulverem, the accusative singular of pulvis (“dust; powder”), from Proto-Indo-European *pel- (“dust; flour”)) + -ous (a variant of -us (suffix forming adjectives)); and * Late Middle English pe-poudrus, pypoudrus (“for itinerants or travelling merchants”, adjective), from pe-poudre (see above). Cognates Late Latin pede pulvericatus, pede-pulverosus, pes pulverizatus (“itinerant; travelling merchant”)