IGNORA'MUS, noun [Latin we are ignorant; from ignoro.] 1. The indorsement which a grand jury make on a bill presented to them for inquiry, when there is not evidence to support the charges, on which all proceedings are stopped, and the accused person is discharged. 2. An ignorant person; a vain pretender to knowledge.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI