Dictionary:

guerdon

  (gûr'dn)

A reward; recompense.

To reward.

[Middle English, from Old French, from Medieval Latin widerdōnum, alteration (influenced by Latin dōnum, gift) of Old High German widarlōn : widar, back, against + lōn, reward.]

noun

1. Something given in return for a service or accomplishment: accolade, award, honorarium, plum, premium, prize¹, reward. Idioms: token ofappreciationesteem. See reward/punish/deserve.
2. Something justly deserved: comeuppance, desert² (often used in plural), due, recompense, reward, wage (often used in plural). Informal lump¹ (used in plural). Idioms: what is coming to one, what one has coming. See reward/punish/deserve.

verb

To bestow a reward on: reward. See reward/punish/deserve.

The noun has one meaning:

Meaning #1: a reward or payment