Rainesn.

Etymology: < Anglo-Norman and Middle French Reins, variant of Reims, the name of a city in Champagne, France (English Rheims ), where the fabric was originally produced. Compare Italian †rensa (end of the 13th cent. or earlier), †renso (a1304). With cloth of Raines compare Anglo-Norman chalun de Reins (13th cent. in a glossary), drap de Reins (1396 or earlier), Middle French toille de Reins (1387), Old Occitan tela de Rens (c1250), Italian †tela di renso (beginning of the 14th cent. or earlier), †tela di rensa (first half of the 14th cent. or earlier), and also Old French (Normandy) toile rentiene (second half of the 12th cent.), Old Occitan tela ransana , tela renzana (early 13th cent.), post-classical Latin tela Remensis (c1300 in continental sources), Old Occitan ransan , ranzan , noun (a1210), Spanish †rançan , noun (a1260), all in sense ‘fine linen produced at Rheims’. The β. forms apparently show an inferred singular.The word was formerly generally believed to derive from an English version of Rennes , the name of a city in Brittany. This opinion goes back at least to the early 19th cent. (hence the form Rennes in quot. 1822 at sense 2). It is true that Raynes is attested in late Middle English as a form of the names of both Rennes (so e.g. in 1489 in the Paston Letters) and Rheims (so e.g. in quot. 1485 at anoint v. 3a), and that linen was produced in both cities, which evidently contributed to the uncertainty regarding the etymology. However, the contemporary evidence both in the Romance languages and in post-classical Latin makes it clear that the name of the fabric is derived from Rheims, not Rennes. See further A. C. Moule in Notes & Queries 191 (1946) 24 Aug. 83–5 and Französisches etymol. Wörterbuch at Reims.