As nouns the difference between tapet and taper
is that
tapet is (obsolete) a decorative wall-hanging; a hanging cloth or piece of tapestry while
taper is a slender wax candle; a small lighted wax candle; hence, a small light or
taper can be (weaving) one who operates a tape machine.
As a verb taper is
to make thinner or narrower at one end.