Where does “Saccharomycetes” come from?

Saccharomycetes (Translingual) comes from Ancient Greek σάκχᾰρον — sugar.

Ancestry of “Saccharomycetes”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	σάκχᾰρον	sugar

Saccharomycetes — Etymology, Origin & Word History | Etymology Explorer