Dictionary entry

διανυκτερεύω

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

δια-νυκτερεύω

(cf. διημερεύω, to pass the day) [in LXX: Jb 2:9 *;]

to pass the night: seq. ἐν τ. προσευχῆ, Lk 6:12.†