exploit vs derring-do

exploit and derring-do both are nouns.

Word	Noun	Adjective	Verb	Adverb
exploit	Yes	No	Yes	No
derring-do	Yes	No	No	No

As nouns, derring-do is a hyponym of exploit; that is, derring-do is a word with a more specific, narrower meaning than exploit:

Other hyponyms of exploit include hit, rally, rallying, stunt, tour de force.

exploit (noun)	derring-do (noun)
a notable achievement	brave and heroic feats

exploit (verb)	derring-do (verb)
use or manipulate to one's advantage
draw from; make good use of
work excessively hard