sonsy
lucky; fortunate; thriving; plump
archaic
[…]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.
Where it comes from
From Scots, from Scottish Gaelic sonasach.
Adapted from the Wiktionary entry sonsy (CC BY-SA 4.0).