Little is known about the etymology of this word, some say it is simply a miss-spelling of the word "original", other beleive that the word itself is original, being spelt "origonal". some even use it to describe somthing that is of the state Oregon, as in "that is so Origonal". you may beleive the last definition is also spelt incorrectly, but take into consideration the state of education in Oregon.
"i have been spelling origonally originally since before it was cool"
that hat is so Origonal.