Where does “-ōs” come from?

-ōs (Proto-Germanic) comes from Proto-Indo-European -ēs, from Proto-Indo-European -ess, from Proto-Indo-European -os — Creates action nouns or result nouns from verbs;...

Ancestry of “-ōs”, step by step

StepLanguageWordMeaning
1Proto-Indo-European-ēsPrimarily forms adjectival bahuvrīhi compounds
2Proto-Indo-European-ess—
3Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

Words derived from “-ōs”

Every word from Proto-Indo-European -os →Every word from Proto-Indo-European -ēs →Every word from Proto-Indo-European -ess →