Where does “μοναστήριος” come from?

μοναστήριος (Ancient Greek) comes from Ancient Greek μονάζω, from Ancient Greek μόνος, from Ancient Greek σπέρμα, from Proto-Hellenic *spérmə.

Ancestry of “μοναστήριος”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	μονάζω	to be alone; be solitary
2	Ancient Greek	μόνος	alone, forsaken, solitary; only; unique
3	Ancient Greek	σπέρμα	seed; semen, sperm; seed-time, sowing
4	Proto-Hellenic	*spérmə	—