mend vs repoint

mend is a noun but repoint is not a noun.

Word	Noun	Adjective	Verb	Adverb
mend	Yes	No	Yes	No
repoint	No	No	Yes	No

As verbs, repoint is a hyponym of mend; that is, repoint is a word with a more specific, narrower meaning than mend:

mend: restore by replacing a part or putting together what is torn or broken
repoint: repair the joints of bricks

mend (noun)	repoint (noun)
the act of putting something in working order again
sewing that repairs a worn or torn hole (especially in a garment)

mend (verb)	repoint (verb)
restore by replacing a part or putting together what is torn or broken	repair the joints of bricks
heal or recover