Where does “Κασσιανή” come from?

Κασσιανή (Ancient Greek) comes from Ancient Greek Κασσιανός, from Ancient Greek Κάσσιος, from Latin Cassius, from Latin cassus, from Latin cadō, from Proto-Italic kadō, from Proto-Indo-European ḱad- — to fall.

Κασσιανή (Ancient Greek): Kassiani or Kassia, a ninth-century Byzantine composer, abbess, poet and hymnographer

Definitions

Kassiani or Kassia, a ninth-century Byzantine composer, abbess, poet and hymnographer

Ancestry of “Κασσιανή”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Κασσιανός	—
2	Ancient Greek	Κάσσιος	Cassius
3	Latin	Cassius	a Roman nomen gentile, gens or "family name" held by many Roman politicians, historians and other notable individuals. See Cassia gens
4	Latin	cassus	hollow, empty, devoid of something; lacking;...
5	Latin	cadō	to fall, to fall out
6	Proto-Italic	kadō	fall, sink
7	Proto-Indo-European	ḱad-	to fall

Every word from Proto-Indo-European ḱad- →Every word from Proto-Italic kadō →Every word from Latin cadō →