excogitation

Let it also be noted that this longitude reward was not a premium upon excogitation of a mysterious difficulty.

No amount of pure inspection and excogitation could decide which belongs to which world.

Before the excogitation of this splendid resolve, he had been observed to wear for some period a conspiratorial aspect.

Excogitation, this combination of letters is to be found in the Doctor's works, though not in his Dictionary.

He was beginning to wonder what Mr. Dainopoulos would say to the theory of Intensive Excogitation.