Clojure borrows from C++, C#, Common Lisp, Erlang, Haskell, Mathematica, ML, Prolog, Scheme, Java, Racket, Ruby - according to Wikipedia. I would guess that 10

Clojure borrows from C++, C#, Common Lisp, Erlang, Haskell, Mathematica, ML, Prolog, Scheme, Java, Racket, Ruby - according to Wikipedia. I would guess that 10% of its operator names come from Lisp. Okay, that's a wild guess. Let's look at the special forms: def-, if+, do-, let+, quote+, var-, fn-, loop-, recur-, throw-, try-, monitor-enter-, monitor-exit, ... Around three from thirteen special forms have roughly the same name/meaning in Lisp. Let's look at printing: pr-, prn-, print-, println-, newline-. None Lisp names, either they don't exist in Lisp under that name or they do something else. PR and PRN don't exist in Lisp. PRINT prints a newline before printing the object. PRINTLN does not exist in Lisp. NEWLINE is called TERPRI. Thus even for a simple thing as basic IO the API is different.