Where does “alloreactivity” come from?

alloreactivity (English) comes from English reactivity, from English -ity, from Middle English -ite, from Old French -ité, from Latin -itās, from Proto-Indo-European -teh₂ts, from Proto-Indo-European -teh₂, from Proto-Indo-European -tós — Creates verbal adjectives from verb stems.

alloreactivity (English): The reaction of a lymphocyte or antibody with an...

Definitions

  1. The reaction of a lymphocyte or antibody with an...

Ancestry of “alloreactivity”, step by step

alloreactivity traces back through two separate lines of ancestry.

via English reactivity

StepLanguageWordMeaning
1Englishreactivityresponsiveness to stimulation; relative...
2English-ityUsed to form a noun from an adjective;...
3Middle English-ite
4Old French-ité-ity
5Latin-itās
6Proto-Indo-European-teh₂tsUsed to form nouns representing state of being
7Proto-Indo-European-teh₂Used to form nouns representing state of being
8Proto-Indo-European-tósCreates verbal adjectives from verb stems

via English allo

StepLanguageWordMeaning
1EnglishalloAlternative spelling of 'allo
2EnglishallosexualDirected toward or involving another person...
3Englishallo-different, other; isomeric; especially, of amino...
4Ancient Greekἄλλοςother, another, different, else; in combination...
5Ancient GreekκρίνωTo separate, divide, part, distinguish between...
6Proto-Hellenickríňňō
7Proto-Indo-Europeankrinyéti
8Proto-Indo-Europeankrey-to sift, separate, divide
Every word from Proto-Indo-European -tós