Passage 3.13.5
Πραξίλλῃ μὲν δὴ πεποιημένα ἐστὶν ὡς Εὐρώπης εἴη καὶ Διὸς ὁ Κάρνειος καὶ αὐτὸν ἀνεθρέψατο Ἀπόλλων καὶ Λητώ· λέγεται δὲ καὶ ἄλλος ἐπʼ αὐτῷ λόγος, ἐν τῇ Ἴδῃ τῇ Τρωικῇ κρανείας ἐν Ἀπόλλωνος ἄλσει πεφυκυίας τοὺς Ἕλληνας ἐκτεμεῖν ἐς τοῦ ἵππου τοῦ δουρείου τὴν ποίησιν· μαθόντες δὲ ὀργήν σφισιν ἔχειν τὸν θεὸν θυσίαις ἱλάσκονται καὶ Ἀπόλλωνα ὀνομάζουσι Κάρνειον ἀπὸ τῶν κρανειῶν, ὑπερθέντες τὸ ῥῶ κατὰ δή τι ἀρχαῖον.
Indeed, compositions by Praxilla state that Karneios was the son of Europa and Zeus, and that he was fostered by Apollo and Leto. Another story, however, is told about him: that when the Greeks cut down cornel trees that grew in Apollo's sacred grove on Trojan Ida in order to build the Wooden Horse, they learned that the god was angered against them. So, seeking to appease him through sacrifices, they called Apollo "Karneios," derived from the cornel trees (kraneiai), having altered the letter rho according to some ancient custom.