Where does “pistachero” come from?

pistachero (Spanish) comes from Spanish pistacho, from French pistache, from Venetian pistacio, from Latin pistācium, from Ancient Greek πιστάκιον, from Ancient Greek -ῐον, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

pistachero (Spanish): pistachio

Definitions

pistachio

Ancestry of “pistachero”, step by step

Step	Language	Word	Meaning
1	Spanish	pistacho	pistachio
2	French	pistache	pistachio; peanut
3	Venetian	pistacio	—
4	Latin	pistācium	A pistachio nut
5	Ancient Greek	πιστάκιον	pistachio
6	Ancient Greek	-ῐον	diminutive suffix; "suffix forming...
7	Proto-Indo-European	-yós	Creates adjectives from noun or verb stems

Every word from Proto-Indo-European -yós →Every word from Ancient Greek -ῐον →Every word from Ancient Greek πιστάκιον →