no prosperous is not an adverb. it is an adjective.
Recession is a noun. It has an adjective form recessional and an adverb recessionally (which refers to the manner). There is a related adverb "recessive" (not dominant) which has the adverb form recessively.
The adverb of benefit is beneficially. The adjective is beneficial and the noun is beneficialness. Benefits is noun and has no adverb.
No, it is not an adverb. Profit can be a noun, or a verb. A related adjective is "profitable" and has the adverb form "profitably."
biscuit
Obligingly
No, "please" is not a preposition. It is an adverb that is commonly used to make requests or polite commands.
if you oblige me that would be very good of you.
The abstract noun is obligation.
oblige art is a thing that you do
The prefix of "oblige" is "ob-".
Please may be an adverb (used in polite requests) or a verb meaning to satisfy or to oblige.
They tried to oblige the needs of the costumers.
To Oblige a Lady was created in 1931.
The duration of To Oblige a Lady is 1.17 hours.
The noblesse oblige of the rockefellers is inspiring.
Noblesse Oblige - book - was created in 1956.