'achillodynia' originates from Greek, specifically the word 'Achilles' referring to the mythological hero, and 'dynia' meaning 'pain'.

'Achilles' transformed from the Greek hero's name into a term used in medical contexts to describe conditions related to the Achilles tendon.

Initially, it referred to the hero Achilles, but over time it evolved into its current medical meaning of 'pain in the Achilles tendon'.