You may want to check these out:
http://oxforddictionaries.com/definition/prohibit?q=prohibit
http://oxforddictionaries.com/definition/prohibited
http://oxforddictionaries.com/definition/prohibition
http://oxforddictionaries.com/definition/prohibitive
http://dictionary.cambridge.org/dictionary/british/prohibit?q=prohibit
http://dictionary.cambridge.org/dictionary/british/prohibition_1
http://dictionary.cambridge.org/dictionary/british/prohibitive
http://www.thefreedictionary.com/prohibit
http://www.thefreedictionary.com/prohibited
http://www.thefreedictionary.com/prohibition
http://www.thefreedictionary.com/prohibitive
http://www.thefreedictionary.com/prohibitively
http://www.thefreedictionary.com/prohibitionist
http://www.thefreedictionary.com/prohibitory