Also a word in the Ancient Greek of Homer.
The working and the work of transformative, shape-shifting intelligence, the ability to imitate the enemy and beat him at his own game. Also, the circular reciprocity of what is binding and what is bound.

In the Odyssey, both Odysseus and Penelope exhibit metis. Odysseus saves himself in the Polyphemus episode (Book IX) with a perversion of xenia parallel to that of Polyphemus (since the cyclops eats his guests instead of being a proper host). Odysseus identifies himself as "Nobody," so that when the other cyclopes ask Polyphemus what is wrong, Polyphemus replies "Nobody is hurting me!"

Penelope's metis of the (re)marriage bed is manifested in Book XXIII, lines 1-230. This is the heroine's metis of recognition of true identity. She resolves ambiguity through "secret signs" known only by Penelope and Odysseus (l.107-110). She pretends that she has moved the immovable marriage bed, the bed known only to Odysseus who build it around a living olive tree, a secret guarded by Penelope so that no other man has seen it (l.225-230).