However, there are related terms with prefixes that deal with form:
* Form itself can be a prefix, meaning "shape" or "structure": formless, formulate, formality, formation.
* Format: This word includes the prefix "for-", indicating that something is made into a particular shape or structure.
* Conform: This word includes the prefix "con-", meaning "with" or "together", and implies adjusting to a specific form or shape.
If you are looking for a specific prefix for a particular concept related to form, please provide more context and I can help you find the appropriate term.