αδηλόφλεβος

From LSJ

ἄνθρωπος ὢν ἥμαρτον· οὐ θαυμαστέον → being human I made a mistake; there is nothing remarkable about it

Source

Greek Monolingual

ἀδηλόφλεβος, -ον (Α)
αυτός που έχει αόρατες, αφανείς φλέβες.
[ΕΤΥΜΟΛΟΓΙΑ < ἄδηλος + φλέψ.