Where does “nanosandwich” come from?

nanosandwich (English) comes from English nano, from English nano-, from Latin nānus, from Ancient Greek νᾶνος — dwarf.

nanosandwich (English): A nanoscale structure consisting of a dielectric...

Definitions

nanosandwich traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	English	nano	Nanotechnology
2	English	nano-	API; In the International System of Units and...
3	Latin	nānus	dwarf
4	Ancient Greek	νᾶνος	dwarf

Step	Language	Word	Meaning
1	English	Sandwich	one of the historic Cinque Ports OS grid ref TR3258
2	French	sandwich	sandwich food
3	English	sandwich	A dish or foodstuff where two or more slices of...