Definition of "sonsy"

[…] as black a Jacobite as the auld leaven can make him; but a sonsy, merry companion, that none of us think it worth while to break wi' for all his brags and his clavers.

1824, Sir Walter Scott, chapter 10, in Redgauntlet

The housemaid at the boarding-house where we have stayed since we left Heathstock is a fat, sonsy, good-natured girl, perfectly ignorant and stupid, but she has not been long in the colony, and seems willing to learn.

1866 January, Mary Anne Barker, “Letter VI”, in Station Life in New Zealand‎, London: Macmillan & co, published 1870, page 44