Where does “psiconevrosi” come from?

psiconevrosi (Italian) comes from Italian nevrosi, from Italian -osi, from Ancient Greek -ωσις, from Ancient Greek -σῐς, from Ancient Greek -τις, from Proto-Indo-European -tis — Derives abstract/action nouns from verb roots.

psiconevrosi (Italian): psychoneurosis

Definitions

psychoneurosis

Ancestry of “psiconevrosi”, step by step

Step	Language	Word	Meaning
1	Italian	nevrosi	neurosis
2	Italian	-osi	-osis
3	Ancient Greek	-ωσις	abnormal condition or state; state, abnormal...
4	Ancient Greek	-σῐς	"suffix forming nouns"
5	Ancient Greek	-τις	retained after dentals
6	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 -ωσις →