rag vs objurgate

rag is a noun but objurgate is not a noun.

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

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

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

rag (noun)	objurgate (noun)
a boisterous practical joke (especially by college students)
a small piece of cloth
newspaper with half-size pages
music with a syncopated melody (usually for the piano)
a week at British universities during which side-shows and processions of floats are organized to raise money for charities

rag (verb)	objurgate (verb)
break into lumps before sorting	express strong disapproval of
censure severely or angrily	censure severely
harass with persistent criticism or carping
play in ragtime
treat cruelly
cause annoyance in; disturb, especially by minor irritations