taffeta n.

"a fabric on which colored threads of wool, silk, gold, or silver are fixed to produce a pattern," late 14c., tapiestre, with unetymological -t-, from Old French tapisserie "tapestry" (14c.), from tapisser "to cover with heavy fabric," from tapis "heavy fabric, carpet," from tapiz "carpet, floor covering" (12c.), from Vulgar Latin *tappetium, from Byzantine Greek tapetion, from classical Greek, diminutive of tapes (genitive tapetos) "heavy fabric, carpet, rug," from an Iranian source (compare Persian taftan "to turn, twist"), from PIE *temp- "to stretch." The figurative use is first recorded 1580s.