etch vs etcher

etch is not a noun while etcher is a noun.

Word	Noun	Adjective	Verb	Adverb
etch	No	No	Yes	No
etcher	Yes	No	No	No

etch (noun)	etcher (noun)
	someone who etches

etch (verb)	etcher (verb)
selectively dissolve the surface of (a semiconductor or printed circuit) with a solvent, laser, or stream of electrons
carve or cut a design or letters into
make an etching of
carve or cut into a block used for printing or print from such a block
cause to stand out or be clearly defined or visible