The word for today is…
harangue (noun) – 1. A long pompous speech, especially one delivered before a gathering.
2. A speech or piece of writing characterised by strong feeling or expression; a tirade.
Source : The Free Dictionary
Etymology : In Old Italian, the noun aringo referred to a public assembly, the verb aringare meant “to speak in public,” and the noun aringa referred to a public speech. Aringa was borrowed into Middle French as arenge, and it is from this form that we get our noun harangue, which made its first appearance in English in the 16th century. Perhaps due to the bombastic or exasperated nature of some public speeches, the term quickly developed an added sense referring to a speech or writing in the style of a rant (though the word rant is not etymologically related). There is also a verb harangue, which refers to the act of making such a speech.
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