or illiterate alteration of WORSE a. and adv. (? arising from the colloq. worsen = worse than).
1634. Heywood & Brome, Lancash. Witches, V. i. L 1. It stinket worsen than ony brimstone.
1854. Dickens, Hard T., I. xi. From bad to worse, from worse to worsen.
1854. A. E. Baker, Northampt. Gloss., s.v., Its worsen than it was.