Where does “лептон” come from?

лептон (Kazakh) comes from Russian лепто́н, from Ancient Greek λεπτόν, from Ancient Greek λεπτός, from Ancient Greek -τός, from Proto-Indo-European -tós — Creates verbal adjectives from verb stems.

лептон (Kazakh): lepton

Definitions

lepton

Ancestry of “лептон”, step by step

Step	Language	Word	Meaning
1	Russian	лепто́н	lepton
2	Ancient Greek	λεπτόν	neuter nominative singular of λεπτός; neuter...
3	Ancient Greek	λεπτός	peeled, husked; fine-grained; thin, lean
4	Ancient Greek	-τός	creates verbal adjectives of possibility, either...
5	Proto-Indo-European	-tós	Creates verbal adjectives from verb stems

Every word from Proto-Indo-European -tós →Every word from Ancient Greek -τός →Every word from Ancient Greek λεπτός →