[1] Likewise in other lexica. The headword phrase may or may not be extracted from the quotation given. (The glosses suggest that it is being used figuratively, whereas in the passage it seems to be used literally.) Theodoridis on Photius kappa348 follows Naber in identifying the implicit source-passage as Plato, Republic 492C. For other instances of the phrase, in any event, see under zeta 33 (literal) and lambda 692 (figurative).
[2] Quotation unidentifiable, but apparently from an historiographical account of nocturnal operations. (Adler notes that Roos cited the passage in his collection of the fragments of Arrian but did not go so far as to claim it as one.)