Origin: ME ponchon < MFr poinçon < VL *punctio < punctiare, to prick < L punctus, pp. of pungere, to prick: see point
Origin: LME pwncion < OFr poinçon, prob. < poinchon, var. of poçon, pot, small fluid measure, dim. of pot < VL potus: see pot
See puncheon in American Heritage Dictionary 4
Origin: Middle English punchon
Origin: , from Old French ponçon, ponchon
Origin: , from Vulgar Latin *pūnctiō, pūnctiōn-, punch
Origin: , from *pūnctiāre, to pierce
Origin: , from Latin pūnctus
Origin: , past participle of pungere, to prick; see peuk- in Indo-European roots.
Origin: Middle English ponchon
Origin: , from Old French poinçon, poinchon, punch, cask (probably because the casks were inspected and marked with a punch); see puncheon1.
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