Illative case is a case that expresses motion into or direction toward the referent of the noun it marks.
The term illative case is used especially in studies of Finno-Ugric grammar.
Lyons, John. 1968.Introduction to theoretical linguistics. Cambridge, England: Cambridge University.
Crystal, David. 1985.A dictionary of linguistics and phonetics. 2nd edition. New York: Basil Blackwell.