nōtor

I. v. infra), ōris, m. nosco, one who knows a person or thing, a voucher, witness, = cognitor (postAug.): qui notorem dat ignotus est, Sen. Ep. 39, 1; Petr. 92; Sen. Apoc. med.; NOTOS (i. e. notor) ADVENISTI, Inscr. Orell. 4957.
Lewis & Short
A Latin Dictionary, 1879
An open-access project