возведение укреплений

From LSJ

τὸ δὲ χερσαῖον εἰς τὰ σφέτερα ἤθη καὶ νομοὺς διεξερπύσει → the land animal will crawl away to its own haunts and pastures

Source

Russian > Greek

ἐπιτείχισις, διάχωσις