gleet vs festering

gleet and festering both are nouns.

Word	Noun	Adjective	Verb	Adverb
gleet	Yes	No	No	No
festering	Yes	No	No	No

As nouns, festering is a hypernym of gleet; that is, festering is a word with a broader meaning than gleet:

gleet: a thin morbid discharge as from a wound or especially chronic gonorrhea
festering: a fluid product of inflammation

Other hypernyms of gleet include ichor, purulence, pus, sanies, suppuration.

gleet (noun)	festering (noun)
a thin morbid discharge as from a wound or especially chronic gonorrhea	a fluid product of inflammation
	(medicine) the formation of morbific matter in an abscess or a vesicle and the discharge of pus