Where does “pistache” come from?

pistache (Dutch) comes 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.

pistache (Dutch): The pistachio tree; Its greenish, edible nut-like...

Definitions

The pistachio tree; Its greenish, edible nut-like...

Ancestry of “pistache”, step by step

Step	Language	Word	Meaning
1	French	pistache	pistachio; peanut
2	Venetian	pistacio	—
3	Latin	pistācium	A pistachio nut
4	Ancient Greek	πιστάκιον	pistachio
5	Ancient Greek	-ῐον	diminutive suffix; "suffix forming...
6	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 →