What are the prefixes for come?

There are no prefixes specifically for "come". "Come" is a base word, and you would use other words or prefixes to create new words with different meanings.

For example, you could use:

* Prepositions:

* Come across: to find something by chance.

* Come along: to accompany someone.

* Come around: to change your mind.

* Prefixes:

* Overcome: to conquer or defeat.

* Welcome: to greet someone with pleasure.

* Forecome: to happen before something else (archaic).

The most common way to modify the meaning of "come" is through adding prepositions, not prefixes.