Spume (noun)

Foam or froth formed on the surface of a liquid, often as a result of agitation or fermentation.

Origin:

Derived from latin word "spuma" which means foam, froth, referring to the appearance of the substance.

Examples:

1. The waves were crashing against the rocks, sending plumes of spume into the air.
2. The beer had a thick layer of spume on top.
3. The water in the fountain was filled with spume and bubbles.
4. The spume was blowing in the wind, making it hard to see.
5. The volcano was spewing out spume and ash.