1. to hinder or prevent from a thing, τινά τινος (Xenophon Historicus); with infinitive, ἀπ. τινὰ ποιεῖν to prevent from doing, forbid to do, μὴ ποιεῖν τι (Euripides)

2. with accusative only, to keep off, hinder , (Oracle quoted in Herdotus Historicus): —;absolute to stop the way , (Thucydides):—;impersonal, οὐδὲν ἀποκωλύει there is no hindrance , (Plato Philosophus) (ML)