infix vs graft

infix and graft both are nouns.

Word	Noun	Adjective	Verb	Adverb
infix	Yes	No	Yes	No
graft	Yes	No	Yes	No

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

infix (noun)	graft (noun)
an affix that is inserted inside the word	the act of grafting something onto something else
	the practice of offering something (usually money) in order to gain an illicit advantage
	(surgery) tissue or organ transplanted from a donor to a recipient; in some cases the patient can be both donor and recipient

infix (verb)	graft (verb)
attach a morpheme into a stem word	cause to grow together parts from different plants
put or introduce into something	place the organ of a donor into the body of a recipient