fretting

noun

1. An irritation or worrying; a worry.

   “[I]t is highly likely that some preachers may have called on millennial frettings for their purposes. The theologian Abbo of Fleury recalled a premillennial sermon in his youth which did precisely this.”

2. A gnawing or eating away.

verb

1. (form-of, gerund, participle, present)present participle and gerund of fret