The beginning of the second entry of Apollonius Sophista's Lexicon Homericum reads as follows in the codex Coislinianus gr. 345, the only direct witness to this section (1, 14–15 Bekker): Footnote 1
ἀάατος· ὁ ἀβλαβὴς καὶ εὐχερὴς καὶ δι’ οὗ ἄνευ ἄτης. ἐνίοτε δὲ τὸν ἐπιβλαβῆ καὶ δυσχερῆ …Footnote 2
ἀάατος: ‘harmless’ and ‘easy’, and δι’ οὗ ‘without ἄτη’. But sometimes ‘hurtful’ and ‘difficult’ …
The sequence δι’ οὗ in the first clause, which I have intentionally left untranslated, creates difficulties. Villoison, in his editio princeps of the Lexicon, translates the transmitted sequence καὶ δι’ οὗ ἄνευ ἄτης with ‘et per quem sumus ἄνευ ἄτης, id est, sine noxa’, being forced to add a ‘sumus’ that is neither in the Greek text nor deducible from the context.Footnote 3 In its other occurrences in Apollonius δι’ οὗ unproblematically introduces a relative clause with σημαίνει or δηλοῦται as the main verb. In these clauses, which usually convey straightforward semantic explanations, δι’ οὗ simply marks the transition to a more common or more transparent synonym, and can therefore be translated as ‘by which’: see in particular 77, 17–18 ἐρύουσι· ἀντὶ τοῦ ἐρύσωσιν· σημαίνει δὲ τὸ ἕλκουσι, δι’ οὗ δηλοῦται τὸ κατέδονται; 80, 33–4 ζαφελῶς· ὁ μὲν Ἀπίων μεγαλοκότως· ἐπιφέρει δὲ τὸ μενεαίνειν, δι’ οὗ σημαίνει τὸ ἐγκοτεῖν;Footnote 4 122, 34–123, 1 ὀρθοκραιράων· […] ἔνιοι δὲ ὀρθοκεφάλων, δι’ οὗ τὸ ὀρθόπρυμνον σημαίνει.Footnote 5
The meaning ‘by which’ cannot be accommodated in the entry ἀάατος. Not only is a form like σημαίνει or δηλοῦται missing, but ἄνευ ἄτης (whether its sense is ‘without sin’ or ‘without harm’) can hardly be considered a simplifying explanation of what precedes (εὐχερής). More importantly, the connective καί before δι’ οὗ is incompatible with a straightforward relative clause, and rather suggests that an additional meaning is being adduced. Accordingly, Bekker simply excides δι’ οὗ, and his solution has long remained unchallenged.Footnote 6
The excision fixes the text and is supported by a locus parallelus in Hesychius, whose entry ἀάατον (α5) reads τὸ ἀβλαβὲς καὶ εὐχερές, ἢ ἄνευ ἄτης.Footnote 7 However, it undoubtedly entails a trivialization and leaves us with a crucial question: how to account for the presence of δι’ οὗ?
A better solution than Bekker's excision is in my opinion the emendation of δι’ οὗ to ἰδίως, to be understood in the meaning of ‘properly’, ‘literally’. Among the several possible nuances of the adverb, this acceptation is solidly attested in lexicography in the context of literal and etymological explanations of single words.Footnote 8 Apollonius’ Lexicon shows this usage in the entry ὀλοοίτροχος (120, 11), which is explained as follows: ὁ Κομανὸς ἰδίως ἀποδίδωσιν ὅλος τρέχων, ‘Comanus renders literally as ὅλος τρέχων’.Footnote 9
Several other parallels can be found in glossographical works. Examples include Hesychius s.v. τ1404 τρίοδος· καὶ τριόδους πληθυντικῶς· ἰδίως τὰς τρεῖς ὁδούς; Synagoge lex. chres. cod. B s.v. α2618 (= Phot. Lex. s.v. α3456): ἄχρηστος· ὁ ἀνωφελής. καὶ ἰδίως ᾧ οὐδεὶς χρῆται; Phot. Lex. s.v. ε1210: ἐξηγητής· ἰδίως ὁ ἐξηγούμενος τὰ ἱερά; Phot. Lex. s.v. θ157: θηλάστριαν· ἣν θηλάσεταί τις ἰδίως; Phot. Lex. s.v. ε1188 (= EM 386, 13 Kallierges) ἐξεταστής· σημαίνει μὲν καὶ ἄλλα, ἰδίως δὲ τοὺς πεμπομένους ἄρχοντας τοῦ ἐξετάσαι πόσοι εἰσὶν … .
As in these passages, the definition which ἰδίως would accompany in Apollonius’ entry ἀάατος is an etymological one, as the meaning ἄνευ ἄτης is extracted from the structure of the lemma through the typical identification of privative alpha.Footnote 10 This is one of the possible means of building words considered in the Lexicon: see in particular the entry α, 1, 3–4, a general discussion of privative alpha, as well as 36, 12 ἀνωϊστί· […] ἄνευ τοῦ οἴεσθαι; 39, 25 ἀπριάτην· ἄπρατον, ἄνευ τοῦ πρίασθαι.Footnote 11
As to the genesis of the mistake, a misreading can easily have been caused by the palaeographical closeness of καιιδιωσ and καιδιου, particularly if the ending ως was abbreviated in the source manuscript. A confusion between the compendium for ως and that for οῦ is not unlikely, considering the similarity between their respective shapes: a horizontal symbol describable as a reversed tilde can be used for ως (∽: the adverb ἰδίως is so abbreviated, for example, in fol. 29r of the Coislinianus, in the entry λωτόν), while the abbreviation for οῦ resembles a reversed tilde, but with the two curves vertically detached and slightly slid towards one other. One of the possible compendia for ου, a single curve identical to the left-hand half of ∽, is also not dissimilar.Footnote 12 The wrong expansion of the abbreviation for ως would have gone hand in hand with the omission of iota after καί, in either the same copying event or, more likely, subsequently by haplography.Footnote 13