Just some Prefix questions

Just some Prefix questions

K i was wondering what are the names of some prefixes for words.

I know that:
hydro meens water
Aero is air
Pyro is fire
Necro is sorcery/corpse/dark and the like

my questions is, what are the prefixes for holy/nice (opposite to necro) and the prefix for earth and soil

Sacro- and geo-, possibly. I may be wrong, so I would suggest waiting for a more educated response.

Geo- is definently the one for earth, however Necro- is only for death rather than shadows and such