LATIN DICTIONARYLexicon Latīnum
suffixfirst/second-declension suffix

-genus

-genus (feminine -gena, neuter -genum)

Meaning

  1. morphemesuffixborn from, sprung from
  2. morphemesuffixproducing

Origins

Ultimately from Proto-Indo-European *ǵenh₁ós (“born”), from *ǵenh₁- (“to give birth”). Cognate of Ancient Greek -γενής (-genḗs, “born in a certain place or condition”).

Quick answers

What does -genus mean in Latin?
-genus, a suffix, means “born from, sprung from; producing”.