talk down vs derogate

talk down and derogate both are verbs.

Word	Noun	Adjective	Verb	Adverb
talk down	No	No	Yes	No
derogate	No	No	Yes	No

As verbs, derogate is a hypernym of talk down; that is, derogate is a word with a broader meaning than talk down:

Other hypernyms of talk down include belittle, denigrate, minimize.

talk down (verb)	derogate (verb)
belittle through talk	cause to seem less serious; play down
speak in a condescending manner, as if to a child
direct and control (the flight of an airplane during landing) via radio