In a courteous manner; with obliging civility or condescension; politely.(adverb)
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Use "courteously" in a sentence
"He had stated his terms courteously, but firmly, from the first."
"“Go, I will pay you to-morrow,” said Aziz to the driver, and as they went off he called courteously, “You are most welcome, ladies.”"
"In the same moment, he heard his name courteously sounded; and, to his pleased surprise, saw Don Benito advancing -- an unwonted energy in his air, as if, at the last moment, intent upon making amends for his recent discourtesy."