LATIN DICTIONARYLexicon Latīnum
noun · masculinesecond declension

grammateus

grammateus m (genitive grammateī)

Meaning

  1. Late Latinmasculinescribe, secretary

Declension

declension
formsingularplural
nominativegrammateusgrammateī
genitivegrammateīgrammateōrum
dativegrammateōgrammateīs
accusativegrammateumgrammateōs
ablativegrammateōgrammateīs
vocativegrammateegrammateī

grammăteus, ĕos, m., = γραμματεύς,
I. a scribe, secretary (post-class.): unus, quem cuncti grammatea dicebant, App. M. p. 265, 14.

Origins

Borrowed from Ancient Greek γραμματεύς (grammateús).

In the Academy Smith's classical dictionaries

Quick answers

What does grammateus mean in Latin?
grammateus, a noun, means “scribe, secretary”.
What is the genitive of grammateus?
The genitive singular is grammateī. grammateus is masculine, second declension.