diffuse
verb (used with object)
to pour out and spread, as a fluid.
Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The Bonadventure lay still, even the cocoa-like mud which her propeller had been diffusing in a few moments thinning away.
From The Bonadventure A Random Journal of an Atlantic Holiday by Edmund Blunden