The same language with different words / those shirts / euthanasia

[Carol]

Catlady, quoting my post:
> << arcadia doors >>
> 
> ??????????

Carol:
Slliding glass double doors that generally open onto a patio or
balcony. Unlike French doors, they don't have little square panes but
are one solid sheet of glass in a metal frame. They slide in exactly
the same way as the doors of most American clothes closets.

CatladY: 
> Singlet! That's the word Carol is looking for! It is an uncommon
word in USA and always strikes me as a quaint Britishism, and as
crying out for some kind of pun with 'doublet'.

Carol:
Well, actually, I considered "singlet," but, IMO, it's too
old-fashioned and too British to work for this particular manuscript.
if my young client has heard the term at all, she probably associates
it with the uniform of a high school wrestler. I think that "tank
(top)," "muscle shirt" (or "muscle T," though it's an A-shirt), and
possibly "undershirt" and "A-shirt" are the most workable
alternatives.) She'll probably end up rejecting them all and going
with "wifebeater," but a least I tried, and I appreciate everyone's
contributions to the discussion.

Catlady:
> I seem to recall we had this thread a few years ago when Percy was
> stated to be wearing a woolen tank top. I think that must have been
> GoF, as after that, Percy was off-stage until the just before the end.
>

Carol:
Film!Percy, do you mean? I don't remember the discussion at all. 

Catlady:
> I'd never heard the term "A-shirt" before either. The only on-line
dictionary that <http://www.onelook.com/> found for it was Wikipedia,
which did not give an etymology. T-shirts are named from their shape,
but A-shirts don't strike me as looking like the letter A.

Carol:
I had the same reaction. T-shirts and A-shirts made me think of Model
T's and Model A's. I've never understood the reasoning there, either.

Carol, who could have sworn that "A-shirt" was listed in
Merriam-Webster Online but tried it again and got such helpful
suggestions as "eye chart," "estuary," and "usherette"!