Disquisition :: Disquisition (n.) A formal or systematic inquiry into, or discussion of, any subject; a full examination or investigation of a matter, with the arguments and facts bearing upon it; elaborate essay; dissertation..
Disquisitional :: Disquisitional (a.) Pertaining to disquisition; of the nature of disquisition.
Disquisitionary :: Disquisitionary (a.) Pertaining to disquisition; disquisitional.
Disquisitive :: Disquisitive (a.) Relating to disquisition; fond discussion or investigation; examining; inquisitive.