come to vs pertain

come to and pertain both are verbs.

Word	Noun	Adjective	Verb	Adverb
come to	No	No	Yes	No
pertain	No	No	Yes	No

As verbs, come to and pertain are synonyms defined as:

Other synonyms of come to include bear on, concern, have to do with, refer, relate, touch, touch on.

come to (verb)	pertain (verb)
return to consciousness	be a part or attribute of
cause to experience suddenly	be relevant to
attain
be relevant to