Where does “fotosintesi” come from?

fotosintesi (Italian) comes from English photosynthesis, from English synthesis, from Latin synthesis, from Ancient Greek σύνθεσις, from Ancient Greek συντίθημι, from Ancient Greek σῠν-, from Ancient Greek σύν, from Proto-Hellenic *ksún — beside, with.

fotosintesi (Italian): photosynthesis

Definitions

photosynthesis

Ancestry of “fotosintesi”, step by step

fotosintesi traces back through two separate lines of ancestry.

via English photosynthesis

Step	Language	Word	Meaning
1	English	photosynthesis	Any process by which plants and other...
2	English	synthesis	The formation of something complex or coherent by...
3	Latin	synthesis	A collection or reunion of many objects of...
4	Ancient Greek	σύνθεσις	a putting together, composition, combination,...
5	Ancient Greek	συντίθημι	to assemble, put together
6	Ancient Greek	σῠν-	together; with, together
7	Ancient Greek	σύν	beside, with
8	Proto-Hellenic	*ksún	beside, with

via Italian sintesi

Step	Language	Word	Meaning
1	Italian	sintesi	A synthesis, a summary; synthesis

Every word from Proto-Hellenic *ksún →Every word from Ancient Greek σῠν- →Every word from Ancient Greek συντίθημι →