thinking
something out carefully as to achieve complete comprehension of it;
conception, invention;
Excogitation means 'the act of thinking or
studying intensely',
and hence 'the result of thinking; a contrivance'."
Excogitation is from excogitate
'to think out; devise; study intensely',
derived ultimately from
Latin excogitare.
It is first found in English in the early sixteenth century.
"The labour of excogitation is too violent to last
long;
the ardour of enquiry
will sometimes give way to idleness or satiety"
(Samuel
Johnson, Rasselas).
"To the excogitation of this problem,
he had devoted many anxious hours"
(Dickens, Our Mutual Friend).