decrepitude vs age

decrepitude and age both are nouns.

Word	Noun	Adjective	Verb	Adverb
decrepitude	Yes	No	No	No
age	Yes	No	Yes	No

As nouns, age is a hypernym of decrepitude; that is, age is a word with a broader meaning than decrepitude:

decrepitude: The quality or state of being wasted and weakened by or as if by the infirmities of old age.
age: a late time of life

Other hypernyms of decrepitude include eld, geezerhood, old age, years.

decrepitude (noun)	age (noun)
a state of deterioration due to old age or long use	how long something has existed
The quality or state of being wasted and weakened by or as if by the infirmities of old age.	a time of life (usually defined in years) at which some particular qualification or power arises
	a late time of life
	an era of history having some distinctive feature
	a prolonged period of time