Programming language and compiler -

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I was discussing this with my friend and realized that this is the best place to ask this question?

How does a new language arise? This new language should be written in some new language (eg C ++ was written in C in the initial stages), or how is it made? And, how can this language work new if there is no compiler for it? So, there should be some compiler for this? Who writes compiler for this?

So, how does all this work together, the new language and its compiler, the relationship of the new language with its native language?

You write compiler in an implementation language, as long as the compiler starts to compile new languages So that everyone else can be implemented

EDIT: Just to clarify, the commenter on this answer is also correct. The compiler does not need to be written in a new language, unless you want it. As stated, some people do not go that route and live with the basic implementation language.


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