Definition of "discoursing"

“I have no appetite; I can't eat!” — “My dear fellow,” answered the Doctor in mildest tone, “it isn't of the slightest consequence;” — and continued his philosophical discoursings with us!

1843 April, Thomas Carlyle, “Happy”, in Past and Present, American edition, Boston, Mass.: Charles C[offin] Little and James Brown, published 1843, book III (The Modern Worker)

Mrs Gamp and Mr Sweedlepipe had many deep discoursings on the subject of this mysterious customer […]

1842 December – 1844 July, Charles Dickens, The Life and Adventures of Martin Chuzzlewit, London: Chapman and Hall, […], published 1844