bastardise vs subvert

bastardise and subvert both are verbs.

Word	Noun	Adjective	Verb	Adverb
bastardise	No	No	Yes	No
subvert	No	No	Yes	No

As verbs, subvert is a hypernym of bastardise; that is, subvert is a word with a broader meaning than bastardise:

bastardise: change something so that its value declines; for example, art forms
subvert: corrupt morally or by intemperance or sensuality

Other hypernyms of bastardise include corrupt, debase, debauch, demoralise, demoralize, deprave, misdirect, pervert, profane, vitiate.

bastardise (verb)	subvert (verb)
declare a child to be illegitimate	to raze to the ground, also figuratively
change something so that its value declines; for example, art forms	cause the downfall of; of rulers
	destroy property or hinder normal operations
	corrupt morally or by intemperance or sensuality