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v. Simple past tense and past participle of froth.

"There were still others where the notion frothed and foamed, turning up unexpected ideas, revealing depths of dissatisfaction, of desire, of unsuspected powers in woman that startled the staid old world."

frothed    frothing    froths   

create    make   

froth of blood   

frothed    frothing    froth at the mouth    frothy   

spume    foam   

Roth    auth    broth    cloth    doth   

foam    saliva    swirl    billow    slime