Where does “псевдопоэзия” come from?

псевдопоэзия (Russian) comes from Russian поэзия, from Polish poezja, from French poésie, from Middle French poésie, from Old French poesie, from Latin poēsis, from Ancient Greek ποίησις, from Ancient Greek -σῐς — Derives abstract/action nouns from verb roots.

псевдопоэзия (Russian): poetastry

Definitions

poetastry

Ancestry of “псевдопоэзия”, step by step

Step	Language	Word	Meaning
1	Russian	поэзия	poetry; charm, elegance, romantic appeal of...
2	Polish	poezja	poetry
3	French	poésie	poetry
4	Middle French	poésie	poetry
5	Old French	poesie	—
6	Latin	poēsis	poetry
7	Ancient Greek	ποίησις	poetry, poem; a creation, fabrication, production
8	Ancient Greek	-σῐς	"suffix forming nouns"
9	Ancient Greek	-τις	retained after dentals
10	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 ποίησις →