What is 'order' in More Modular Exponential (MODP) Diffie-Hellman groups? I am investigating on source code of a program called hostapd. And I am looking into Diffii-Hellman part of it.

/* RFC 3526, 3. Group 14 - 2048 Bit MODP
 * Generator: 2
 * Prime: 2^2048 - 2^1984 - 1 + 2^64 * { [2^1918 pi] + 124476 }
 */
static const u8 dh_group14_generator[1] = { 0x02 };
static const u8 dh_group14_prime[256] = {
  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  ...
}; /* too long */
static const u8 dh_group14_order[256] = {
  0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  ...
}; /* too long */


I understand that dh_group14_generator is a generator and dh_group14_prime is a prime for 2048 bit MODP from RFC 3526.

However, I can't find any clue of dh_group14_order. What does it stand for?
Order here is not anything to do with how you might "order" a row of pencils in order of height (or some similar behaviour) -- but the number of elements in the group in question.