What prefix could you attach to the beginning of a word indicate it comes before something else?

There are several prefixes you can use to indicate something comes before something else. Here are a few options, along with examples:

* Pre-: This is the most common and general prefix for "before".

* Examples: pre-game, pre-flight, pre-existing, pre-natal

* Ante-: This prefix means "before" in time or place.

* Examples: antebellum (before the war), antecedent (something that comes before), anteroom (a room before another)

* Pro-: While often meaning "for" or "in favor of", "pro-" can also mean "before" in some cases.

* Examples: pro-glacial (before a glacial period), prologue (the introductory part of a book or play)

* Fore-: This prefix suggests something that happens earlier or in advance.

* Examples: forewarn (warn in advance), forefather (an ancestor), forecast (predict)

* Prior-: This prefix emphasizes the order of things and means "earlier" or "preceding".

* Examples: prior engagement, prior authorization, prior knowledge

The best prefix to use will depend on the specific context and the meaning you want to convey.