Guer"don (?), n. [OF. guerdon, guerredon, LL. widerdonum (influenced by L. donum gift, cf. Donation ), fr. OHG. widarlōn; widar again, against (G. wider wieder) + lōn reward, G. lohn, akin to AS. leán Goth. laun. See Withers.] A reward; requital; recompense; -- used in both a good and a bad sense. Macaulay.

So young as to regard men's frown or smile
As loss or guerdon of a glorious lot.

He shall, by thy revenging hand, at once receive the just guerdon of all his former villainies.

Guer"don (?), v. t. [OF. guerdonner, guerredonner. See Guerdon, n.] To give guerdon to; to reward; to be a recompense for. [R.]

Him we gave a costly bribe
To guerdon silence.

• a reward, prize or recompense for a service; an accolade
  
• comeuppance or just deserts
  
• to give someone such a reward