The difference between Overfeed and Surfeit

When used as verbs, overfeed means to feed a person or animal too much, whereas surfeit means to fill to excess.

Surfeit is also noun with the meaning: an excessive amount of something.

check bellow for the other definitions of Overfeed and Surfeit

Overfeed as a verb (transitive):

To feed a person or animal too much.
Overfeed as a verb (intransitive):

To eat more than is necessary.

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.