Where does the word "pragma" come from?

MGSoto picture MGSoto · Sep 24, 2010 · Viewed 12.4k times · Source

So I know what pragma is, and what it's used for, but what is the meaning of the word itself? I've used it many times in code, but I never really knew what the word actually means or stands for.

Answer

martin clayton picture martin clayton · Sep 25, 2010

According to a US Government-owned(!) document describing the design of Ada: Rationale for the Design of the Ada® Programming Language :

A pragma (from the Greek word meaning action) is used to direct the actions of the compiler in particular ways, but has no effect on the semantics of a program (in general).

I like the (last caveat) there...

This cross references well with on-line greek dictionaries (e.g. as quoted by Martin York) that say pragma (πράγμα, as commented on the original question by asveikau) means:

  1. that which has been done, a deed, an accomplished fact
  2. what is done or being accomplished
    1. spec. business, a commercial transaction
  3. a matter, question, affair
    1. spec. in a forensic sense, a matter at law, case, suit
  4. that which is or exists, a thing

Seems the key to understanding is the word action rather than information.