The unglossed headword is both the ethnikon of the place about to be mentioned and a personal name in its own right. Apollonius Rhodius, Argonautica 2.51 invented (according to the scholia thereto) a Lycoreus as the attendant of King Amykos; and the city Lykoreia had -- inevitably -- an eponymous founder of that name (cf. lambda 830).
[1] Stephanus of Byzantium classifies it as a "village in Delphi"; see also Strabo 9.3.3.