The Collaborative International Dictionary of English v.0.48:

And \And\, conj. [AS. and; akin to OS. endi, Icel. enda, OHG.
   anti, enti, inti, unti, G. und, D. en, OD. ende. Cf, An if,
   Ante-.]
   1. A particle which expresses the relation of connection or
      addition. It is used to conjoin a word with a word, a
      clause with a clause, or a sentence with a sentence.
      [1913 Webster]

   Note: (a) It is sometimes used emphatically; as, "there are
         women and women," that is, two very different sorts of
         women. (b) By a rhetorical figure, notions, one of
         which is modificatory of the other, are connected by
         and; as, "the tediousness and process of my travel,"
         that is, the tedious process, etc.; "thy fair and
         outward character," that is, thy outwardly fair
         character, --Schmidt's Shak. Lex.
         [1913 Webster]

   2. In order to; -- used instead of the infinitival to,
      especially after try, come, go.
      [1913 Webster]

            At least to try and teach the erring soul. --Milton.
      [1913 Webster]

   3. It is sometimes, in old songs, a mere expletive.
      [1913 Webster]

            When that I was and a little tiny boy. --Shak.
      [1913 Webster]

   4. If; though. See An, conj. [Obs.] --Chaucer.
      [1913 Webster]

            As they will set an house on fire, and it were but
            to roast their eggs.                  --Bacon.
      [1913 Webster]

   And so forth, and others; and the rest; and similar things;
      and other things or ingredients. The abbreviation, etc.
      (et cetera), or &c., is usually read and so forth.
      [1913 Webster]

The Free On-line Dictionary of Computing (30 December 2018):

AND
conjunction

    (Or "conjunction") The Boolean function which is
   true only if all its arguments are true.  The truth table
   for the two argument AND function is:

    A | B | A AND B
    --+---+---------
    F | F |    F
    F | T |    F
    T | F |    F
    T | T |    T

   AND is often written as an inverted "V" in texts on logic.  In
   the C programming language it is represented by the &&
   (logical and) operator.

   (1997-11-15)