English
seroreversion
From sero- + reversion.
Proto-Indo-European *ser- ‘to flow, run’
Proto-Indo-European *sér-o- ‘flowing, liquid’
Proto-Italic *serom ‘liquid’
Latin serum ‘some other watery liquid’
English sero-
Proto-Indo-European *wert- ‘to turn, to rotate, spin’
…
Latin vertō ‘turn’
Latin revertor ‘to return’
Latin reversio ‘the act of turning back, return’
Old French reversion ‘return’
English reversion
Today it means
noun The reversion of a seroconversion (when tests can no longer detect antibodies in a patient's serum)
Sources
Sources: Wiktionary, “seroreversion”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / seroreversion