fond regard vs warmheartedness

fond regard and warmheartedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
fond regard	Yes	No	No	No
warmheartedness	Yes	No	No	No

As nouns, warmheartedness is a hypernym of fond regard; that is, warmheartedness is a word with a broader meaning than fond regard:

Other hypernyms of fond regard include affection, affectionateness, fondness, heart, philia, tenderness, warmness.

fond regard (noun)	warmheartedness (noun)
a feeling of affection for a person or an institution	a positive feeling of liking
	a warmhearted feeling