Definition of "puzzled"

(...) when the day of the departure came, between her two customs of laughing and crying, Miss Sedley was greatly puzzled how to act.

1847 January – 1848 July, William Makepeace Thackeray, chapter 11, in Vanity Fair […], London: Bradbury and Evans […], published 1848

Once or twice he scratched his head, and stared out of the window with a puzzled frown. And each time, after a brief survey of the other side of Half Moon Street, he turned back again to the breakfast table with a grin.

1920, Herman Cyril McNeile, chapter 1, in Bulldog Drummond