#Deianira (Δηϊάνειρα) as a post-event nickname (an 'nciuria if you will) and her real name lost to time is the theory I didn't know I needed#Can you have headcanons in Classics? I swear to the gods some scholars definitely do seem to have them @ashbakche
post-event names are actually (probably) incredibly common in Greek mythology! Herakles (glore-of-hera) may be another one, where the name wasn't attached to the hero until the story of his apotheosis and reconciliation with Hera emerged. There are even aetiologies given for Herakles, since an alternative name for him is Alcaeus or Alcides, after his grandfather. This name, funnily enough, means strong, which is, um, also very apt and therefore very suspect as his original name/label.
The same occurs for Priamus, whose name may have a Luwian origin ('most courageous') but was explained by a myth where it is connected to priamai, 'to buy'. His original name was supposedly Podarces, but his sister bought him back from Herakles after the first sack of Troy so he could rebuild the city as the last remaining royal heir.
meanwhile king Lycaon ('wolf') has that name even before he is turned into a wolf. Either Zeus had a spark of inspiration or it's another post-event name. And then the mountain the sanctuary the festival and whatnot is named after the dude's punishment, ouch.
Someone in the notes also mentioned Polynices (Polineikes), whose name means 'much strife/much conflict' and Pentheus (sorrow), and i think we can add Aeneas to it as well, who, despite surviving Troy, still has to endure awful sorrows. Aphrodite in the Hymn to Aphrodite explains her chosen name as bearing a child to a mortal being an awful grief to her, but this may be post-event name being retconned into having a pre-birth cause! And Achilles name actually derives from that same word for grief, meaning 'grief of the people'. I find this one especially interesting because it highlights the prioritization of one event in his life, his famous strike from the Iliad, which has nothing to do with his most famous characteristics, like being fast, invincible, or even just the best of the greeks. Not even his iconic birth, baptism, or death! It's incredibly post-event specific. (howeverrrr another reading if you ask me could be that the people in question are the Trojans and then it could pertain to Hector's death or the war in general. hmmmm. BUT then again the proem of the iliad also links him and his name so clearly to the demise of so. many. greeks. so idk)
this is a fun quirk of an organically developing mythology: the story becomes fixed sooner than the name of the figure does, so often the name reflects the most common characteristic or act of the figure.