μυιϊκός
From LSJ
ψυχῆς πείρατα ἰὼν οὐκ ἂν ἐξεύροιο πᾶσαν ἐπιπορευόμενος ὁδόν· οὕτω βαθὺν λόγον ἔχει → one would never discover the limits of soul, should one traverse every road—so deep a measure does it possess
English (LSJ)
ή, όν,
A of or belonging to a fly, Gloss.
German (Pape)
[Seite 216] von der Fliege, Sp.