ἀντιμηχανάομαι
From LSJ
ἐπάμεροι· τί δέ τις; τί δ' οὔ τις; σκιᾶς ὄναρ ἄνθρωπος → Neverlasting: What is a somebody? What is a nobody? You are a dream of a shadow | Creatures of a day. What is a someone, what is a no one? Man is the dream of a shade.
English (LSJ)
A contrive against or in opposition, ἄλλα ἀ. Hdt.8.52, cf. E Ba.291; σβεστήρια κωλύματα Th.7.53: abs., Arist.HA613b27; πρός τι X.HG5.3.16.