jaw vs objurgate

jaw is a noun but objurgate is not a noun.

Word	Noun	Adjective	Verb	Adverb
jaw	Yes	No	Yes	No
objurgate	No	No	Yes	No

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

Other hyponyms of jaw include castigate, chasten, chastise, correct, brush down, tell off.

jaw (noun)	objurgate (noun)
holding device consisting of one or both of the opposing parts of a tool that close to hold an object
the part of the skull of a vertebrate that frames the mouth and holds the teeth
the bones of the skull that frame the mouth and serve to open it; the bones that hold the teeth

jaw (verb)	objurgate (verb)
talk socially without exchanging too much information	express strong disapproval of
censure severely or angrily	censure severely
talk incessantly and tiresomely
chew (food); to bite and grind with the teeth