The use of third declension adjectives.

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Although 3rd declension nouns and adjectives share many of the same endings, one of the main differences is that the ablative singular of a noun (masculine, feminine or neuter) ends in -e, whereas the ablative singular of an adjective (masculine, feminine or neuter) ends in -i. This difference can be seen in the following sentence:

cum laude ingenti illud mihi dicit.
He said that ...