The difference between Superfluity and Surfeit

When used as nouns, superfluity means the quality or state of being superfluous, whereas surfeit means an excessive amount of something.

Surfeit is also verb with the meaning: to fill to excess.

check bellow for the other definitions of Superfluity and Surfeit

Superfluity as a noun:

The quality or state of being superfluous; overflowingness.

Examples:

"ant necessity"
Superfluity as a noun:

Something superfluous, as a luxury.

Examples:

"ant necessity"
Superfluity as a noun (rare):

Collective noun for a group of nuns.

Surfeit as a noun (countable):

An excessive amount of something.

Examples:

"A surfeit of wheat is driving down the price."
Surfeit as a noun (uncountable):

Overindulgence in either food or drink; overeating.
Surfeit as a noun (countable):

A sickness or condition caused by overindulgence.

Examples:

"King Henry I is said to have died of a surfeit of lampreys."
Surfeit as a noun:

Disgust caused by excess; satiety.

Surfeit as a verb (transitive):

To fill to excess.
Surfeit as a verb (transitive):

To feed someone to excess.

Examples:

"She surfeited her children on sweets."
Surfeit as a verb (intransitive, reflexive):

To overeat or feed to excess.
Surfeit as a verb (intransitive, reflexive):

To sicken from overindulgence.