Where does “*-es” come from?

*-es (Proto-Brythonic) comes from 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 “*-es”, step by step

StepLanguageWordMeaning
1Latin-issa
2Ancient Greek-ῐσσᾰfemininizes masculine nouns in the first declension
3Ancient Greek-ῐ́ᾱ{{l|en|-ia}}; "suffix forming abstract feminine...
4Proto-Indo-European-íh₂
5Proto-Indo-European-h₂Creates collective nouns, which refer to groups...

Words derived from “*-es

Every word from Proto-Indo-European -h₂