unobserved
From LSJ
ῥᾴδιον φθείρειν φαρμακεύσεσιν ἢ ἀποτροπαῖς ἢ καὶ κλοπαῖς → easy to spoil by means of sorcery or diverting or theft
English > Greek (Woodhouse)
adjective
do a thing unobserved: P. and V. λανθάνειν ποιῶν τι, V. λήθειν ποιῶν τι.
unobserved by: use Ar. and V. λάθρα (gen.), P. κρύφα (gen.).