Learn more about Achilles' heel
- This article deals with the phrase "Achilles’ heel". For the part of the body, see Achilles tendon; for the album, see Achilles Heel (album).
An Achilles’ heel is a fatal weakness in spite of overall strength, actually or potentially leading to downfall. While the mythological origin refers to a physical vulnerability, metaphorical references to other attributes or qualities that can lead to their downfall are common.
The death of Achilles was not mentioned in Homer's Iliad, but appeared in later Greek and Roman poetry and drama concerning events after the Iliad, later in the Trojan War. Here and in the myths surrounding the war, Achilles died from a heel wound as the result of a poisoned arrow fired by Paris.
According to a myth arising later, his mother, Thetis, had dipped the infant Achilles in the river Styx, holding onto him by his heel, and he became invulnerable where the waters touched him -- that is, everywhere but the areas covered by her thumb and forefinger -- implying that only a heel wound could have been his downfall.
The use of “Achilles’ heel” (or “Achilles tendon”) as an English expression for “area of weakness, vulnerable spot” dates only to 1855 (Merriam-Webster).
 See also
- Siegfried in the Nibelungenlied
- Duryodhana, an Indian tale of a small area of vulnerability (from Mahabharatha)
- Achilles tendonda:Akilleshæl