γνάθος

1. the jaw , properly the lower jaw , ἡ κάτω γν. (Herdotus Historicus); ἔπαγε γνάθον take your teeth to it! (Aristophanes Comicus); oft. in plural, (Plato Philosophus), etc.

2. metaphorically of fire, (Aeschulus Tragicus)

3. metaphorically also, like Lat. fauces, of a narrow strait , (Aeschulus Tragicus)

4. the point or edge , as of a wedge, (Aeschulus Tragicus) (ML)