D defs.my
Entry 3 senses Webster, 1913

Summon

/sŭm'-ən/ · Sum·mon · IPA /ˈsʌmən/
01 v. t. To call, bid, or cite; to notify to come to appear; -- often with up.
imp. & p. p. Summoned; p. pr. & vb. n. Summoning
  1. 1.
    To call, bid, or cite; to notify to come to appear; -- often with up.
    “Stiffen the sinews, summon up the blood.” Shak.
    “Trumpets summon him to war.” Dryden.
  2. 2.
    To give notice to, or command to appear, as in court; to cite by authority; as, to summon witnesses.
  3. 3.
    To call upon to surrender, as a fort.(Mil.)