ἀνάγκη τὸ κινοῦν ἀντικινεῖσθαι → what incites movement must suffer a counter-movement
v.
P. and V. ὀρύσσειν, σκάπτειν.
Burrow through: Ar. and P. διορύσσειν (acc.).
subs.
Hiding-place: V. κευθμών, ὁ; see den.