Where does “Cicerone” come from?

Cicerone (Italian) comes from Latin Ciceronem, from Latin cicer, from Proto-Indo-European ḱiḱer- — pea.

Ancestry of “Cicerone”, step by step

Step	Language	Word	Meaning
1	Latin	Ciceronem	—
2	Latin	cicer	chickpea; testicle
3	Proto-Indo-European	ḱiḱer-	pea