Origins
The word 'taffeta' is Persian at its core, and its etymology is disarmingly simple: it means 'woven.' Where other fabric names encode geographic origins (denim from Nîmes, muslin from Mosul, calico from Calicut), taffeta encodes a process — the act of weaving itself.
The Persian source is 'تافته' (tāfteh), the past participle of the verb 'تافتن' (tāftan), meaning 'to twist, to spin, to weave.' In Persian, 'tāfteh' could describe any woven fabric, but when the word traveled westward into Arabic, Medieval Latin, Old French, and English, it narrowed to denote a specific type of fabric: the crisp, smooth, lustrous silk with a plain weave and a distinctive sheen and rustle.
Persian textile production was among the most sophisticated in the ancient and medieval world. The Persian Empire (both Achaemenid and Sassanid) was a major center of silk weaving, and Persian silk was exported throughout the Roman world and beyond. When Arab armies conquered Persia in the seventh century, they inherited and continued this textile tradition, and Persian textile vocabulary passed into Arabic and from there into European languages through Mediterranean trade.
French Influence
The word entered English in the fourteenth century from Old French 'taffetas,' itself from Medieval Latin 'taffeta.' The fabric was prized for its crispness, its sheen, and its characteristic rustle — the sound of taffeta skirts moving is so distinctive that the French word 'froufrou' (the rustling of silk or taffeta) is onomatopoeia for it.
Shakespeare used 'taffeta' as a metaphor for pretentious, overelaborate speech. In 'Love's Labour's Lost' (Act V, Scene 2), Berowne renounces 'taffeta phrases, silken terms precise, / Three-piled hyperboles, spruce affectation, / Figures pedantical' — using fabric terminology to skewer rhetorical excess. The metaphor was apt: taffeta was the most artificial, the most obviously manufactured of the luxury silks, with its stiff crispness and unnatural sheen. It represented the triumph of craft over nature.
The fabric's properties come from its weave structure. Taffeta uses a plain weave (each weft thread passes alternately over and under each warp thread), but with the threads packed tightly and under tension. This creates the characteristic crispness and the light-catching sheen. The 'rustle' comes from the friction of tightly packed threads moving against each other.
Scientific Usage
Modern taffeta is often made from synthetic fibers (polyester, nylon, acetate) rather than silk, but the name and the essential properties — crispness, sheen, rustle — remain. The word 'taffeta' has also entered specialized terminology in other fields: 'taffeta weave' is the technical term for a plain weave in textile engineering, and 'taffeta' is used in medicine for a type of adhesive plaster (court plaster), originally made from silk taffeta coated with isinglass.
The journey of 'taffeta' from a generic Persian past participle meaning 'woven' to a specific English noun meaning a particular kind of crisp silk fabric is a case study in semantic narrowing through cultural transmission. What was universal in Persian became specific in English, shaped by the particular trade relationships and aesthetic preferences of medieval and Renaissance Europe.