From Ragan’s PR Daily:

No authoritarian authority exists that determines whether a given word is valid or bogus. In any language, there’s a complex and imperfect vetting procedure; at least in English, most serious writers agree on the correct or preferred form of a word that is one of two or more variants or on whether a word is acceptable at all.
Here’s a list of words that have been under scrutiny in this approval process:

1. Administrate: A