1 adverbs to describe how to derogated

The Frenchman was held to have gravely derogated from good manners by alluding to this circumstance, which had reached his ears while he was under the table: and the Englishman swore so outrageously at the plight in which he found himself that the Italians then and there silently registered a vow that none of his nation should ever be Pope, a maxim which, with one exception, has been observed to this day.

1 adverbs to describe how to  derogated  - Adverbs for  derogated