Where does “vol'rêsse” come from?

vol'rêsse (Norman) comes from Norman -êsse, from Late Latin -issa, from Ancient Greek -ῐσσᾰ, from Ancient Greek -ῐ́ᾱ, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

Ancestry of “vol'rêsse”, step by step

Step	Language	Word	Meaning
1	Norman	-êsse	-ess
2	Late Latin	-issa
3	Ancient Greek	-ῐσσᾰ	femininizes masculine nouns in the first declension
4	Ancient Greek	-ῐ́ᾱ	{{l\|en\|-ia}}; "suffix forming abstract feminine...
5	Proto-Indo-European	-íh₂	—
6	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 Norman -êsse →