The Collaborative International Dictionary of English v.0.48:

Pod \Pod\, v. i. [imp. & p. p. Podded; p. pr. & vb. n.
   Podding.]
   To swell; to fill; also, to produce pods.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

-pod \-pod\ [See Foot.]
   A combining form or suffix from Gr. poy`s, podo`s, foot; as,
   decapod, an animal having ten feet; phyllopod, an animal
   having leaflike feet; myriapod, hexapod.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pod \Pod\, n. [Probably akin to pudding, and perhaps the same
   word as pad a cushion; cf. also Dan. pude pillow, cushion,
   and also E. cod a husk, pod.]
   1. A bag; a pouch. [Obs. or Prov. Eng.] --Tusser.
      [1913 Webster]

   2. (Bot.) A capsule of plant, especially a legume; a dry
      dehiscent fruit. See Illust. of Angiospermous.
      [1913 Webster]

   3. (Zool.) A considerable number of animals closely clustered
      together; -- said of seals.
      [1913 Webster]

   Pod auger, or pod bit, an auger or bit the channel of
      which is straight instead of twisted.
      [1913 Webster]

The Free On-line Dictionary of Computing (19 January 2023):

P.O.D.

    Piece Of Data (as opposed to code).

   [Jargon File]

   (2000-04-08)


The Jargon File (version 4.4.7, 29 Dec 2003):

P.O.D.
 /P·O·D/

    [rare; sometimes ‘POD’ without the periods] Acronym for ‘Piece Of Data’ or
    ‘Plain Old Data’ (as opposed to a code section, or a section containing
    mixed code and data). The latter expansion was in use by the C++ standards
    committee, for which it indicated a struct or class which only contains
    data (as in C), distinguished from one which has a constructor and member
    functions. There are things which you can do with a P.O.D. which you can't
    with a more general class.