General:
* Vit-: Meaning "life," "vital," or "essential." Examples: vitamin, vital, vivacious
* Fund-: Meaning "base," "foundation," or "essential." Examples: fundamental, foundation, funding
* Prim-: Meaning "first," "original," or "essential." Examples: primary, primitive, prime
* Nec-: Meaning "death" or "essential." Example: necessary
Specific:
* Pre-: Meaning "before" or "essential." Example: prerequisite
* In-: Meaning "in" or "essential." Example: inherent
* Im-: Meaning "not" or "essential." Example: indispensable (meaning "cannot be dispensed with")
It's important to note that the meaning of the prefix can vary depending on the word it's attached to. Therefore, it's best to choose a prefix that fits the specific context of your sentence.
For example, if you're talking about something that is absolutely necessary for survival, "vit-" might be the best option. If you're talking about something that is fundamental to a concept, "fund-" might be more appropriate.
Ultimately, the best way to choose a prefix is to consider the specific meaning you want to convey.