Definition of "testily"

[…] thinking it urgent to say something, I asked him presently if he felt any cold draught from the door, which was behind him."No, no!" he responded shortly and somewhat testily.

1847 October 16, Currer Bell [pseudonym; Charlotte Brontë], chapter XXXIII, in Jane Eyre. An Autobiography. […], volumes (please specify |volume=I to III), London: Smith, Elder, and Co., […]

`We have been looking for a mystery, and we certainly seem to have found one.' `What do I make of it? Why, that your poor dear father was off his head, of course,' I answered, testily.

1886 October – 1887 January, H[enry] Rider Haggard, She: A History of Adventure, London: Longmans, Green, and Co., published 1887

"Sit ye down, I'm sayin'," said Uncle Jobson testily.

1930, Norman Lindsay, Redheap, Sydney, N.S.W.: Ure Smith, published 1965, page 43

'Oh, for heaven's sake,' said Prak and died testily.

1995, Douglas Adams, The Hitch Hiker's Guide to the Galaxy: a Trilogy in Five Parts, page 458