On Fri, 22 Apr 2016 17:06:34 +0100, "Peter Duncanson [BrE]"
<
ma...@peterduncanson.net> wrote:
>On Thu, 21 Apr 2016 22:45:37 -0000 (UTC), Tom Friedetzky
><
tom-...@friedetzky.org> wrote:
>
>>On Thu Apr 21 2016 at 20:55:18 UTC, Richard Tobin <
ric...@cogsci.ed.ac.uk> wrote:
>>> Whatever. You can make it into nappies (US diapers) for all I care.
>>
>>Regarding "diapers", that doesn't describe the purpose very well, does
>>it - what with "dia" meaning "through" and all?
>
<smile>
The origin of the word is a type of textile fabric that had nothing to
do with intercepting excreta. It seems to have come down in the world
OED:
Etymology: Middle English < Old French dyapre , diapre , originally
diaspre (Godefroy), Provençal diaspre , diaspe , in medieval Latin
diasprus adjective, diaspra , diasprum (c1023), noun (Du Cange); in
Byzantine Greek d?asp??? adjective, < d?a- (dia- prefix1) + ?sp???
white.
Early French references mention diaspre ‘que fu fais en
Costantinoble’ and ‘dyaspre d'Antioch’, and associate it with other
fabrics of Byzantine or Levantine origin. Thus, the Roman de la Rose
l. 21193 (Meon III. 294) has ‘Cendaux, molequins arrabis, Indes,
vermaux, jaunes et bis, Samis, diapres, camelos’. The word occurs in
mediæval Greek, c959, in Constantine Porphyrogenitus De Ceremoniis
Aulæ Byzant. (Bonn 1829–40, p. 528) where the ?µ?t??? or robe used
in the investment of a Rector is described as d?asp???. On the
analogy of d???e????, d?asp??? may mean ‘white at intervals, white
interspersed with other colour’; though the sense might also be
‘thoroughly’ or ‘pure white.’ In Old French, diaspre is often
described as blanc. (Italian diaspro, Spanish diaspro, and
Portuguese diaspro ‘jasper’ appear to be unconnected with French
diaspre, Provençal diaspre ‘diaper’. Du Cange has mixed up the two.
A gratuitous guess that the name was perhaps derived from Ypres in
Flanders has no etymological or historical basis.)
I.
1. The name of a textile fabric; now, and since the 15th c., applied
to a linen fabric (or an inferior fabric of ‘union’ or cotton) woven
with a small and simple pattern, formed by the different directions
of the thread, with the different reflexions of light from its
surface, and consisting of lines crossing diamond-wise, with the
spaces variously filled up by parallel lines, a central leaf or dot,
etc.
In earlier times, esp. in Old French and medieval Latin, the name
was applied to a richer and more costly fabric, apparently of
silk, woven or flowered over the surface with gold thread. See
Francisque Michel, Recherches sur les Etoffes de Soie, d'Or et
d'Argent (Paris 1852) I. 236–244.
2. A towel, napkin, or cloth of this material; a baby's napkin or
‘clout’.
II.
3. The geometrical or conventional pattern or design forming the
ground of this fabric.
1813 Edinb. Encycl. (1830) VI. 686 A design of that intermediate
kind of ornamental work which is called diaper.
1882 S. W. Beck Draper's Dict. 97 Some of the diapers are very
curious. One of them consists of a series of castles; in each are
two men holding hawks; the size of each diaper being about six
inches, and the date the fourteenth century.
4.
a. A pattern or design of the same kind, or more florid, in colour,
gilding, or low relief, used to decorate a flat surface, as a
panel, wall, etc.
<etc>