English
seroactivity
Seroactivity comes from Latin āctīvitās ‘activity, movement, action’, from agō ‘to act, to behave’, and ultimately from Proto-Indo-European *h₂eǵ-.
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂eǵ-1reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂éǵeti1‘to be driving’reconstructed
- Proto-Italicc. 1500–700 BCE*agō1‘to drive’reconstructed
- Latinc. 75 BCE–200 CEagō1‘to act, to behave’
- Latinc. 75 BCE–200 CEāctīvus1‘active’
- Latinc. 75 BCE–200 CEāctīvitās1‘activity, movement, action’
- Middle Frenchc. 1400–1600activité1
- English1500–presentactivity1
- Englishtodayseroactivity1
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, English seroactivity
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂eǵ-Wiktionary, English seroactivityreconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂éǵetiWiktionary, English seroactivity‘to be driving’reconstructed
- Proto-Italicc. 1500–700 BCE*agōWiktionary, English seroactivity‘to drive’reconstructed
- Latinc. 75 BCE–200 CEagōWiktionary, English seroactivity‘to act, to behave’
- Latinc. 75 BCE–200 CEāctīvusWiktionary, English seroactivity‘active’
- Latinc. 75 BCE–200 CEāctīvitāsWiktionary, English seroactivity‘activity, movement, action’
- Middle Frenchc. 1400–1600activitéWiktionary, English seroactivity
- English1500–presentactivityWiktionary, English seroactivity
- EnglishtodayseroactivityWiktionary, English seroactivity
Linked words
through Proto-Indo-European *h₂eǵ-
suggest, register, essay, gesture, acre, digest, congestion, agrarian, belligerent, gestation, ingestion, ingest, progesterone, agitate, axiomatic, samaj, agger, gestion, gerund, 127 more
through Proto-Indo-European *h₂éǵeti ‘to be driving’
strategy, agony, antagonist, axiom, reactionary, antagonism, agonist, antagonize, stratagem, glucagon, agonize, 101 more
through Proto-Italic *agō ‘to drive’
reaction, transaction, unambiguous, reagent, ambiguously, 79 more
through Latin agō ‘to act, to behave’
act, agency, agent, action, actual, actor, agenda, examine, examination, actively, ambiguous, squat, agile, assay, radioactive, ambiguity, enact, inactive, agility, agitation, cogent, actuator, retroactive, exigent, actuation, inexact, actuate, redact, 91 more
through Latin āctīvus ‘active’
active, activate, radium, 27 more
through English activity
Today it means
noun The activity of a bacterium or virus in the blood
Sources
Sources: Wiktionary, “seroactivity”. 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 / Proto-Indo-European *h₂eǵ- / seroactivity