Not sure that a word could be a factoid or a fact inasmuch as a fact is a thing done or performed or something that has really occurred or a particular truth. I suppose that usage of a neologism or perhaps an ironic new usage - like "wicked" to signify approval, and by implication attesting that it is proper usage would be a factoid, but once it gained sufficient currency for that usage to be incorporated into the OED then to say it was a proper usage would have become a fact.
One could stray from etymology to theology and logos - e.g. John 1.1, which my son did for his degree and enjoyed. However, quite keen on having the option to own interesting Italian cars himself he is applying for a training contract at City law firms