Do you fribble? Are you a fribblish fribbler?

Fribble [ˈfɹɪbəl] is an old word meaning to waste or fritter; to behave in a frivolous way or to totter. As an adjective it means of little or no importance or frivolous, and as a noun it means a trifling action, a trifler, a frivolous, contemptible fellow or a fop [source].

It is possibly related to frivol (to behave frivolously, to triffle), from French frivole (vain, conceited), from Latin frīvolus (silly, empty, trifling, frivolous, worthless), possibly from PIE *bʰreyH- (to scrape, pierce) [source].

Words related to fribble include fribbledom (frivolous or trifling behaviour), fribbleism (frivolity), fribbler (one who trifles or behaves frivolously), and fribblish (frivolous, trifling).

Words related to frivol include frivolous (silly, slight, trivial), frivolity (frivolous act, state of being frivolous) and maybe brine (salt water) and fray in English, frivol (frivolous) in Romanian, frívolo (frivolous, futile, inconstant, silly) in Portuguese, frívolo (frivolous, flippant) in Spanish [source].