v. s.w. dial. [Of obscure origin: cf. STRIP v.] trans. To rob, strip. Also absol.

1

c. 1680.  in A. H. A. Hamilton, Quarter Sessions (1878), 220. [Robert Coad was convicted of] being a night walker, and pilfering and strubbing in the night-time.

2

1867.  Rock, Jim & Nell, lxiv. But they’ve a-strubb’d vlower-knats an’ heaths, And fudgeed up zum purty wreaths.

3

1870.  Pengelly, in N. & Q., Ser. IV. VI. 72/1. [In East Cornwall thirty years ago] to strub was to strip or rob. Thus, we were said to strub a bird’s nest (not the bird) when we took the eggs or young birds from it.

4