Where does “monster” come from?

monster (Middle Dutch) comes from Latin monastērium, from Ancient Greek μοναστήριον, from Ancient Greek μόνος, from Ancient Greek σπέρμα, from Proto-Hellenic *spérmə.

Ancestry of “monster”, step by step

monster traces back through two separate lines of ancestry.

via Latin monastērium

StepLanguageWordMeaning
1Latinmonastēriummonastery
2Ancient Greekμοναστήριονsolitary dwelling, hermit's cell; monastery
3Ancient Greekμόνοςalone, forsaken, solitary; only; unique
4Ancient Greekσπέρμαseed; semen, sperm; seed-time, sowing
5Proto-Hellenic*spérmə

via Old French monstre

StepLanguageWordMeaning
1Old Frenchmonstremonster
2Latinmōnstruma divine omen indicating misfortune, an evil omen, portent
3Proto-Italicmonestrom

Words derived from “monster

Every word from Proto-Hellenic *spérməEvery word from Ancient Greek σπέρμαEvery word from Ancient Greek μόνος