asthenia vs frailty

asthenia and frailty both are nouns.

Word	Noun	Adjective	Verb	Adverb
asthenia	Yes	No	No	No
frailty	Yes	No	No	No

As nouns, frailty is a hypernym of asthenia; that is, frailty is a word with a broader meaning than asthenia:

asthenia: an abnormal loss of strength
frailty: the state of being weak in health or body (especially from old age)

Other hypernyms of asthenia include debility, feebleness, frailness, infirmity, valetudinarianism.

asthenia (noun)	frailty (noun)
an abnormal loss of strength	moral weakness
	the state of being weak in health or body (especially from old age)