Definition of "secrets"

After examining it, he touches and stops the pendulum, takes away its key, poles the stick into the box and secrets it away as if it were a prize.

1978, John F. Desmond, Still moment: essays on the art of Eudora Welty, Scarecrow Press, p. 90

But instead of surrendering the weapon to the needy Partisans as he originally promised, Pin secrets it away in a magical place in the forest [...]

1999, Constance Markey, Calvino: a journey toward postmodernism, University Press of Florida, p. 38