where does the word achilles heel come from
Achilles' heel In Greek mythology, when Achilles was a baby, it was foretold that he would die young. To prevent his death, his mother Thetis took Achilles to the River Styx, which was supposed to offer powers of invulnerability, and dipped his body into the water; however, as Thetis held Achilles by the heel, his heel was not washed over by the water of the magical river. Achilles grew up to be a man of war who survived many great battles. One day, a poisonous arrow shot at him was lodged in his heel, killing him shortly afterwards.
Hector Another mention of Hector's exploits in the early years of war was given in the Iliad book 9. During the embassy to Achilles, Odysseus, Phoenix and Ajax all try to persuade Achilles to rejoin the fight. In his response, Achilles points out that while Hector was terrorizing the Greek forces now, and that while he himself had fought in their front lines, Hector had 'no wish' to take his force far beyond the walls and out from the Skiaian Gate and nearby oak tree. He then claims, 'There he stood up to me alone one day, and he barely escaped my onslaught.' Another duel that took place, although Hector got help from Aeneas and Deiphobus, was when Hector rushed to try to save his brother Troilus from Achilles' hands. But he came too late and Troilus had already perished. All Hector could do was to take the lifeless body of Troilus while Achilles escaped after he fought his way through from the Trojans reinforcement.