Where does “serotherapeutics” come from?

serotherapeutics (English) comes from English sero-, from Latin Serum, from Proto-Indo-European sēr-, from Proto-Indo-European ser- — to flow; to guard; to bind, to tie together.

Ancestry of “serotherapeutics”, step by step

StepLanguageWordMeaning
1Englishsero-combining form of serum now often used in...
2LatinSerumwhey
3Proto-Indo-Europeansēr-to flow
4Proto-Indo-Europeanser-to flow; to guard; to bind, to tie together
Every word from Proto-Indo-European ser- →Every word from Proto-Indo-European sēr- →Every word from English sero- →