fragmentize vs splinter

fragmentize is not a noun while splinter is a noun.

Word	Noun	Adjective	Verb	Adverb
fragmentize	No	No	Yes	No
splinter	Yes	No	Yes	No

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

Other hyponyms of fragmentize include atomise, atomize, bray, comminute, crunch, grind, mash, pound, sunder, sliver, rag, crumb, brecciate, crush, grate, grind.

fragmentize (noun)	splinter (noun)
	a small thin sharp bit of wood or glass or metal

fragmentize (verb)	splinter (verb)
break or cause to break into pieces	break up into splinters or slivers
	withdraw from an organization or communion
	divide into slivers or splinters