eld vs decrepitude

eld and decrepitude both are nouns.

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

As nouns, decrepitude is a hyponym of eld; that is, decrepitude is a word with a more specific, narrower meaning than eld:

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

Other hyponyms of eld include dotage, second childhood, senility, autumn years.

eld (noun)	decrepitude (noun)
a late time of life	a state of deterioration due to old age or long use
a time of life (usually defined in years) at which some particular qualification or power arises	The quality or state of being wasted and weakened by or as if by the infirmities of old age.