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Webster 1828 Edition

ppr.

Rolling; wallowing; as in mire, blood, or other filthy matter.

weltering

weltering ‎(plural welterings)

The motion of something that welters; a billowing.
- 1854, Hugh Miller, The Two Records: The Mosaic and the Geological
  They may have extended, it is said, over only a few provinces of Central Asia, in which, when all was life and light in other parts of the globe, there reigned for a time only death and darkness amid the welterings of a chaotic sea […]