plow vs delve

plow is a noun but delve is not a noun.

Word	Noun	Adjective	Verb	Adverb
plow	Yes	No	Yes	No
delve	No	No	Yes	No

plow (noun)	delve (noun)
a farm tool having one or more heavy blades to break the soil and cut a furrow prior to sowing

plow (verb)	delve (verb)
act on verbally or in some form of artistic expression	turn up, loosen, or remove earth
to break and turn over earth especially with a plow
move in a way resembling that of a plow cutting into or going through the soil