v. U.S. colloq. [Alteration of VOW v.2] intr. To vow, swear.

1

1785.  Mass. Spy, 13 Oct., 2/2. We all must dreadful mindful be That we must fight for liberty And vum well ’fend it, if we die.

2

1845.  S. Judd, Margaret, I. xi. ‘I vum,’ said he, ‘what is the matter?’

3

1858.  O. W. Holmes, Aut. Breakf.-t., xi. (1891), 253. But the Deacon swore (as Deacons do, With an ‘I dew vum,’ or an ‘I tell yeou’).

4

  Hence Vum sb.

5

1881.  J. T. Fields, in Harper’s Mag., LXII. Jan., 249.

        Darius was piqued, and he said, with a vum,
‘I’ll pay for the wood, if you’ll send it hum:
But depend on it, neighbors, no danger will come.’

6