What language is Fava coceira in English it means a velvet bean?
I think you'll find it is Portuguese.
Means of communication is actually a medium or a way by which a person can communicate. Now, "English is a means of communication" means that English is a medium through which one can communicate i.e., english is a language through which people talk or communicate. So, by means of communication we mean a language (or medium), or method or way of communication.
Shakespeare wrote in English, the same language I am using now. There is no such language as "Shakespearean language" or "Shakespeare language". It's English. A word like "then" is a building block of the English language and always means "then" when Shakespeare or any other English speaker uses it.