'oratory-centered' originates from the combination of 'oratory,' which comes from Latin 'oratoria,' meaning 'the art of speaking,' and 'centered,' from Old French 'centrer,' meaning 'to place at the center.'

'Oratoria' transformed into the English word 'oratory,' and 'centrer' became 'centered' in modern English.

Initially, 'oratory' meant 'the art of speaking,' and 'centered' meant 'placed at the center.' Together, they evolved to mean 'focused on public speaking.'