foam
UK[fəʊm]US[foʊm]
n
a mass of very small bubbles that form on the surface of a liquid.
v
to produce or be covered with foam.
Etymology
the word 'foam' is a simplex word of old english origin, derived from the proto-germanic faimaz. this term is likely rooted in the proto-indo-european (s)poimno-, a base meaning 'froth' or 'foam'. the word's journey is direct, with its old english form 'fām' maintaining the core sense of a bubbly mass on a liquid. its modern spelling and meaning show minimal abstraction, preserving the ancient concept of froth or spume, as seen in sea spray or soap bubbles.
Analysis
n/a
Examples
the waves crashed against the rocks, creating a white foam.
the freshly poured beer had a thick head of foam.
the rabid dog began to foam at the mouth.