From the annals of WTF, Ancient scholars? Also, if you want to know more words for puking in Greek and Latin, we’ve got you covered.
Etymologicum Magnum [= Etymologicum Gudianum, 461.13]
“Emeia. This is a place near Mycenae. Emeia comes from emo [“to vomit”] just as Thaleia comes from thallô [“to bloom, flourish”]. It is so named either because Kerberos puked there after he came up from Hades or because Thyestes puked there after he ate his own children.”
῎Εμεια: Τόπος ἐστὶ πλησίον Μυκηνῶν· παρὰ τὸ ἐμῶ ῎Εμεια, ὡς θάλλω Θάλεια. Λέγεται δὲ, ἐπειδὴ ἐκεῖ ἤμεσεν ὁ Κέρβερος ἀνελθὼν ἐκ τοῦ ᾅδου· ἢ ἐπειδὴ ἐκεῖ ἔμεσεν ὁ Θυέστης φαγὼν τὰ τέκνα αὐτοῦ.
Eustathius, Comm. Ad Homeri Il. 1.282.24
“…after he tasted them he caused the city Emeia to be named for him because it is where he vomited up the things he ate.”
ὧν καὶ γευσάμενος ἐκεῖνος πόλιν ἐξ αὐτοῦ ἀφῆκε καλεῖσθαι τὴν ῎Εμειαν, ὅπου δηλαδὴ τὰ καταβρωθέντα ἐξήμεσε.
Interestingly, there is a bit of a slip the next time Eustathius tells the story.
Eustathius, Comm. Ad Homeri Il. 3.691.20
“[Note also] that the city Emeia comes from emein [to vomit] because it is where Aigisthos [sic] vomited after eating his own children thanks to the plan of Atreus, as the story goes.”
Οτι δὲ ἐκ τοῦ ἐμεῖν καὶ πόλις ῎Εμεια, περὶ ἣν Αἴγισθος ἤμεσε φαγὼν ἐξ ἐπιβουλῆς ᾿Ατρέως τὰ οἰκεῖα τέκνα, ἡ ἱστορία φησίν.