Mus. [L., = is silent, from tacēre to be silent.] A direction that the voice or instrument is to be silent for a time.
1724. Short Explic. For. Wds. in Mus. Bks., Tace or Tacet, to hold still, or keep Silence.
1789. Rees, Chambers Cycl., Tacet, in the Italian Music, is often used to denote a long rest, or pause.
1823. in Crabb, Techn. Dict., etc.