stoop vs stoop to

stoop is a noun but stoop to is not a noun.

Word	Noun	Adjective	Verb	Adverb
stoop	Yes	No	Yes	No
stoop to	No	No	Yes	No

stoop (noun)	stoop to (noun)
an inclination of the top half of the body forward and downward
small porch or set of steps at the front entrance of a house
basin for holy water

stoop (verb)	stoop to (verb)
carry oneself, often habitually, with head, shoulders, and upper back bent forward	make concessions to
bend one's back forward from the waist on down
descend swiftly, as if on prey
sag, bend, bend over or down
debase oneself morally, act in an undignified, unworthy, or dishonorable way