How do you add a prefix or suffix to the word reason?

Here's how you can add prefixes and suffixes to the word "reason":

Prefixes:

* Unreasoning: This means "lacking reason" or "irrational."

* Disreason: This means "lack of reason" or "absurdity."

* Pre-reason: This means "prior to reason" or "before rational thought." (Less common)

* Misreason: This means "to reason incorrectly" or "to make a logical error."

Suffixes:

* Reasoning: This is the noun form of "reason," meaning "the process of thinking logically."

* Reasonable: This adjective means "based on reason" or "logical."

* Reasonableness: This noun means "the quality of being reasonable."

* Reasonably: This adverb means "in a reasonable way" or "logically."

Other Possibilities:

* Overreason: (Verb) To think too much about something, often to the point of being indecisive.

* Underreason: (Verb) To think too little about something, often leading to impulsive decisions.

The specific prefix or suffix you choose depends on the meaning you want to convey.