illative

Concise Oxford English Dictionary © 2008 Oxford University Press:
illative /ɪˈleɪtɪv/

▶adjective

• 1 of the nature of or stating an inference.

  ■ proceeding by inference.

• 2 Grammar relating to or denoting a case of nouns in some languages used to express motion into something.

– derivatives
illatively adverb.

– origin C16: from L. illativus, from illat- (see illation).