As verbs the difference between cupelling and blick
is that cupelling is while blick is (obsolete|intransitive) to shine; gleam.
As a noun blick is
the brightening or iridescence appearing on silver or gold at the end of the cupelling or refinishing process.
blick
English
Etymology 1
From (etyl) blikken, blikien, .
Verb
(
en verb)
(obsolete) To shine; gleam.
Etymology 2
From (etyl) .
Noun
(
en noun)
The brightening or iridescence appearing on silver or gold at the end of the cupelling or refinishing process.
----