date palm vs feather palm

date palm and feather palm both are nouns.

Word	Noun	Adjective	Verb	Adverb
date palm	Yes	No	No	No
feather palm	Yes	No	No	No

As nouns, feather palm is a hypernym of date palm; that is, feather palm is a word with a broader meaning than date palm:

date palm: tall tropical feather palm tree native to Syria bearing sweet edible fruit
feather palm: palm having pinnate or featherlike leaves

date palm (noun)	feather palm (noun)
tall tropical feather palm tree native to Syria bearing sweet edible fruit	palm having pinnate or featherlike leaves