Tenter:
As a noun it is a framework for stretching fabric. Refers to what you
would use for yardage more often than to anything akin to an
embroidery hoop.

As a verb it is the action of stretching the fabric on the tenter.

To Retenter, is to take a fabric and stretch it to pull the grain
straight.
Like when you buy a few yards of a stripey fabric only to find that
the bit inside the bolt was all wonky, so you wash it and pin it damp
to the curtain rod with a weighted broomstick whipped to the bottom in
hopes of pulling it straight. Sadly, these days when most fabrics are
printed instead of dyed it doesn't work as well as it did back when.

Yes, it is where the reference "tenterhooks" comes from.

NightMist
--

Nothing has been the same since that house fell on my sister.