spume
Concise Oxford English Dictionary © 2008 Oxford University Press:
spume /spjuːm/ literary
▶noun froth or foam, especially that found on waves. ▶verb froth or foam.
– derivatives
spumous adjective,
spumy adjective.
spumous adjective,
spumy adjective.
– origin ME: from OFr. (e)spume or L. spuma.
'spume' also found in these Oxford entries:

