-Stitute

The Search to define the suffix "-Stitute"

For those of you who don't know, a suffix is a few letters that come at the end of a word, giving the word special meaning. For example, the suffix -cycle means the object has wheels...suffixes usually have a prefix, or a few letters that come before a word that do the same thing as suffix...for example, the prefix "tri" means three, so a tri-cycle has three wheels.

However, I recently came across a suffix that apparentely had no meaning...the suffix "-Stitute" (Reffered to in the rest of this report as the variable "S"). This suffix came at the end of several words, which include:
-Constitute, Restitute, Substitute, Prostitute, Institute, and Destitute.
"S" did not appear in any dictionary as a real suffix. As a super-genius, It was my place to correct this.

PREFIXES AND DEFINITIONS
Con- :Disagreement with. Constitute: A part of something
Re- :Do something again. Restitute: Return to former condition
Sub- :Under, beneath. Substitute: Person or thing replacing another
Pro- :In favor. Prostitute: A person what sells sex
In- :Not, absence of . Institute: To establish in a position or office.
De- :No definition, common opinion is "To undo" Destitute: Lacking something needed or desireable.

THEREFORE:
Constitute is a part of S, Restitute is to do S again, Substitute is below S, Prostitutes are for S, Institute has no S, Destitute is an absence of S.
PROPOSED DEFINITION:
Something that is good or really good.
WORDS THAT MEET DEFINITION:
Restitute. Restoring something would probably be bringing it back to a GOOD state.
Substitute: A replacement is not as GOOD as the real thing.
Prostitute: Sex is generally considered a GOOD thing, obviously also by the creator of the word. These people must be for this GOOD thing or they would not sell it.
Destitute: A lack of a needed, or GOOD thing.
WORDS THAT DO NOT MEET DEFINITION:
Constitution: A part of something doesn't really seem like it would be in disagreement with a GOOD thing.
Institute: Establishing a position or office is not an absence of a GOOD thing, unless you hate politicians.