1375-1425;late Middle Englishstanchon < Old Frenchestanchon, equivalent to estanche (variant of estance, probably < Vulgar Latin*stantia, equivalent to Latinstant- (stem of stāns), present participle of stāre to stand + -ia-y3) + -on noun suffix
mid-14c., from O.Fr. estanchon "prop, brace, support" (Fr. étançon), probably from estant "upright," from prp. of ester "be upright, stand," from L. stare "to stand," from PIE base *sta- "to stand" (see stet).