The story
- Proto-Indo-European*ser-
- Proto-Indo-European*sér-o-
- Proto-Italic*serom
- Latinserum
- Englishserum
- Englishsero-
- Englishreactivity
- English todayseroreactivity
From sero- + reactivity.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: The reactivity of blood serum, especially to a virus. Full definition →
From sero- + reactivity.
Etymology from Wiktionary, CC BY-SA 4.0.