trespass vs overstep

trespass is a noun but overstep is not a noun.

Word	Noun	Adjective	Verb	Adverb
trespass	Yes	No	Yes	No
overstep	No	No	Yes	No

As verbs, trespass and overstep are synonyms defined as:

Other synonyms of trespass include transgress.

trespass (noun)	overstep (noun)
entry to another's property without right or permission
a wrongful interference with the possession of property (personal property as well as realty), or the action instituted to recover damages

trespass (verb)	overstep (verb)
pass beyond (limits or boundaries)	pass beyond (limits or boundaries)
break the law	be superior or better than some standard
enter unlawfully on someone's property
commit a sin; violate a law of God or a moral law
make excessive use of