One the the web references I have quoted uses this very spelling and the picture shows a waistcoat which goes in at the waist (or which is typically "cintré").

So "recintré" could refer to something further taken in at the waist, perhaps?

Another one where it's impossible to tell without seeing a picture!

'gilet' is used for garments fitting all 3 of the above categories — it might help if we knew at least if this was a ladies' or gents' garment?

I don't think you should be phased by the use of 're-' — this prefix is often used in FR as a simple intensifier, without any notion of 'again' — cf. 'rentrer', 'rechauffer'

'cintré' is common of course, but I have come across your term 'ceintré' as well — presumably (rightly or wrongly) by association with ceinture. I've even seen it used for 'belted' — as in a long coat, for example.

If I were you, I'd try my hardest to get pictures, or else look at last season's / year's collection from the same catalogue, since they often have similar garments described using the same terms.

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Note added at 1 hr (2011-01-11 14:34:42 GMT)
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Or even jerkin!

Sounds like a sleeveless ladies' woolly, gathered slightly at the waist and worn over this tunic (she'll have cold arms, though, the poor thing!)

Do you have any more clues — for example, from the length, or the material it's made of?

cinched in is more extreme than nipped in

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Note added at 3 hrs (2011-01-11 16:35:29 GMT)
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pink’s ruffle waist pencil dress will enshrine you in lashings of mysterious midnight blue and a reassuringly luxurious fabric. Nipped in at the waist with an eye-catching rose detail and decadently draped fabric, cut just above the knee allowing a sultry flash o’ leg
http://www.boohoo.com/boohoo-pink/eva-boohoo-pink-ruffle-wai...

Think sweet Fifties dresses cinched in at the waist and splaying skirts
http://www.vogue.co.uk/celebrity-photos/100525-chelsea-flowe...

...generous amount of fabric swept across the model’s camouflaged body, sometimes secured by a loose belt or cinched in at the hip by a metallic D- ring brought a very relax and effortless look
http://www.notjustalabel.com/articles/milan_spring_summer_20...

Yves Saint Laurent’s 2010 Spring/Summer which showcased multiple looks that tucked and cinched in at the waist but were hidden with the layering of jackets –
http://www.fashionbeans.com/mens-fashion-trends/fashion-tren...

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Note added at 17 hrs (2011-01-12 07:21:06 GMT)
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Vogue says this season there are a host of styles to choose from, with the catwalks featuring unique looks such as long gilets worn over sheer blouses and nipped in at the waist with a belt.

http://www.lkbennett.com/news/800224318?selectedMonth=&selec...