Where does “elektrolýza” come from?

elektrolýza (Czech) comes from Czech -lýza, from Ancient Greek λύσις, from Ancient Greek -σῐς, from Ancient Greek -τις, from Proto-Indo-European -tis — Derives abstract/action nouns from verb roots.

elektrolýza (Czech): electrolysis the chemical change produced by passing an electric current through a conducting solution or a molten salt

Definitions

electrolysis the chemical change produced by passing an electric current through a conducting solution or a molten salt

Ancestry of “elektrolýza”, step by step

Step	Language	Word	Meaning
1	Czech	-lýza	lysis
2	Ancient Greek	λύσις	loosing, releasing, release, ransoming;...
3	Ancient Greek	-σῐς	"suffix forming nouns"
4	Ancient Greek	-τις	retained after dentals
5	Proto-Indo-European	-tis	Derives abstract/action nouns from verb roots

Every word from Proto-Indo-European -tis →Every word from Ancient Greek -σῐς →Every word from Ancient Greek λύσις →