Where does “fitoiatria” come from?

fitoiatria (Italian) comes from Italian -iatria, from Ancient Greek ἰατρεία, from Ancient Greek -ῐ́ᾱ, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

fitoiatria (Italian): plant pathology

Definitions

plant pathology

Ancestry of “fitoiatria”, step by step

Step	Language	Word	Meaning
1	Italian	-iatria	-iatry
2	Ancient Greek	ἰατρεία	healing, medical treatment; medical treatment
3	Ancient Greek	-ῐ́ᾱ	{{l\|en\|-ia}}; "suffix forming abstract feminine...
4	Proto-Indo-European	-íh₂	—
5	Proto-Indo-European	-h₂	Creates collective nouns, which refer to groups...

Every word from Proto-Indo-European -h₂ →Every word from Ancient Greek -ῐ́ᾱ →Every word from Italian -iatria →