Final answer:
In the context of the sentence 'The prince abjured the ambassador', the word 'abjured' means 'renounced'.
Step-by-step explanation:
In the context of the sentence 'The prince abjured the ambassador', the word 'abjured' means 'renounced'. When someone abjures something, they renounce or give up a belief, allegiance, or opinion. In this case, the prince renounced or gave up his support or loyalty to the ambassador. By using the word 'abjured', the sentence implies that the prince no longer supports or is in favor of the ambassador.