To deliver a sermon, formal speech, or address to a public assembly; to harangue or speak formally.
From Latin 'concionari' meaning 'to deliver a public speech or harangue,' derived from 'concio.' The verb form allows the action of giving such speeches.
Roman generals and politicians would 'concionate' to their troops to rally them before battle—it's a word that captures the power of formal public speech to move crowds to action.
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