Now dial. [Of obscure origin: some dialects have sprunny adj., spruce, smart.] A sweetheart.

1

1762.  Collins’s Misc., 111. Where if good Satan lays her on like thee, Whipp’d to some Purpose will thy Sprunny be.

2

a. 1800.  Pegge, Suppl. Grose, Sprunny, a sweetheart of either sex.

3

1814–.  in midland and eastern dialects.

4