The Collaborative International Dictionary of English v.0.48:
Discourse \Dis*course"\, v. i. [imp. & p. p. Discoursed; p.
pr. & vb. n. Discoursing.]
1. To exercise reason; to employ the mind in judging and
inferring; to reason. [Obs.] "Have sense or can
2. To express one's self in oral discourse; to expose one's
views; to talk in a continuous or formal manner; to hold
forth; to speak; to converse.
Bid me discourse, I will enchant thine ear. --Shak.
3. To relate something; to tell. --Shak.
4. To treat of something in writing and formally.