b-]
noun, verb, -naed, -na⋅ing. Law.| 1. | the usual writ for the summoning of witnesses or the submission of evidence, as records or documents, before a court or other deliberative body. |
| 2. | to serve with a subpoena. |

An order of a court, a legislature, or a grand jury compelling a witness to be present at a trial or hearing, under penalty of fine or imprisonment. Subpoena is Latin for “under penalty.”