pudding vs flummery

pudding and flummery both are nouns.

Word	Noun	Adjective	Verb	Adverb
pudding	Yes	No	No	No
flummery	Yes	No	No	No

As nouns, flummery is a hyponym of pudding; that is, flummery is a word with a more specific, narrower meaning than pudding:

pudding: any of various soft sweet desserts thickened usually with flour and baked or boiled or steamed
flummery: a bland custard or pudding especially of oatmeal

pudding (noun)	flummery (noun)
any of various soft sweet desserts thickened usually with flour and baked or boiled or steamed	meaningless ceremonies and flattery
any of various soft thick unsweetened baked dishes	a bland custard or pudding especially of oatmeal
(British) the dessert course of a meal (`pud' is used informally)