Fashion Glossary starts from R ~ TheFashionTimes.com : Fashion Street to Stardom, New Delhi, India

Rebato	brass underwire in ruff of Spanish clothing.
Redingote	waisted coat with large collar and revers, single or double breasted with cut-away tails.
Reefer	thigh-length coat, popular with seamen.
Reticule	woman's hand-bag.
Revers	the turned back edge of a coat or waist-coat, also known as facings.
Rhinegrave	upper stocks with loose, flowing legs. Often richly decorated, especially with ribbon bows.
Ricinium	square veil worn by Roman women on their heads.
Robe Anglaise	child's dress of the late nineteenth century.
Robings	flat trimmings which decorated around the collar and the bodice.
Rochet	small collarless coat, with sleeves that reached no further that the elbows.
Rond	sausage-shaped pad over which women built their hair.
Ropa	woman's outergarment which is open all the way down the front, with a straight collar (sixteenth and early seventeenth century).
Rotonne	the lower collar of a man's coat specifically the Redingote.
Ruff	starched collar of lawn or cambric which completely encircled the neck. Popular in the late sixteenth century.
Ruffle	a strip of fabric pleated to a straight edge as a frill.