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Webster 1828 Edition

ppr.

Swelled into a large waves or surges.

billowing

billowing ‎(plural billowings)

The act of something that billows; a billow.
- 1839, Western Literary Institute and College of Professional Teachers, Transactions (volume 8, page 59)
  The Bible is full of passages designed to meet and relieve those billowings and heavings of the soul, but without a devotional spirit such passages can never be appreciated or comprehended.