The noun form is quaintness.
The word "quaint" means unusual, or strange, but has come to be associated with old-fashioned settings or those with nostalgic charm. Example: "The hotel was known for its quaint atmosphere, as it retained much of its 19th century design." An interesting person, but a little on the strange side.
The noun 'encyclopedia' is not a standard collective noun for something specific.The noun 'encyclopedia' can be used as a collective noun for any subject or type of information, usually in book form but sometimes used for a person or something else.Examples:The library has an encyclopedia of general information.He wrote an encyclopedia of earthworms.My mother is an encyclopedia of quaint quotes.This marsh is an encyclopedia of wetland lifeforms.
The noun form for the adjective horrible is horribleness.
The town they visited was quaint and simple.
Implication is the noun form of "imply."
Noun
The word "quaint" means unusual, or strange, but has come to be associated with old-fashioned settings or those with nostalgic charm. Example: "The hotel was known for its quaint atmosphere, as it retained much of its 19th century design." An interesting person, but a little on the strange side.
That cat is very Quaint. I do not like quaint products.
Isn't that quaint? That quaint cottage had no stove or running water.
The noun 'encyclopedia' is not a standard collective noun for something specific.The noun 'encyclopedia' can be used as a collective noun for any subject or type of information, usually in book form but sometimes used for a person or something else.Examples:The library has an encyclopedia of general information.He wrote an encyclopedia of earthworms.My mother is an encyclopedia of quaint quotes.This marsh is an encyclopedia of wetland lifeforms.
The noun form for the adjective horrible is horribleness.
The town they visited was quaint and simple.
(quaint means strange or unusual, in an interesting or pleasing way)Our vacation villa in Tuscany was a both a quaint and picturesque place.The quaint customs of rural Italy have persisted for many hundreds of years.She found the building quaint and historic; he thought it was just old.
The noun form of the adjective 'prosperous' is prosperousness.A related noun form is prosperity.
The noun form of the adjective obedient is obedience.
The person who posted the question did not list "the following" - so no 'correct' answer can be given.However, the definition of "quaint" isattractively unusual or old-fashionede.g. quaint country cottages;a quaint old custom.
The noun form of "religious" is "religion."