Etymology Explorer › English

Where does “assay” come from?

Assay comes from Middle English assay, from Anglo-Norman assaier, from Late Latin exagium, from Latin exigo meaning to weigh or test, ultimately from Proto-Indo-European h₂eǵ- meaning to drive or move.

assay (English): Trial, attempt; Examination and determination;...

Definitions

  1. Trial, attempt; Examination and determination;...

Ancestry of “assay”, step by step

StepLanguageWordMeaning
1Middle EnglishassayExamining; investigation, looking into, research;...
2Anglo-NormanassaierAlternative form of essaier
3Old Frenchessaitrial
4Late Latinexagiumweight; weighing, testing on the balance;...
5Latinexigō—
6Latinagō—
7Proto-Italicagōdrive; push, impel; do, act
8Proto-Indo-Europeanh₂éǵetito be driving
9Proto-Indo-Europeanh₂eǵ-to drive

Words derived from “assay”

  • immunoassay
  • bioassay
  • radioimmunoassay
  • interassay
  • fluoroimmunoassay
  • intraassay
  • microassay
  • assayable
  • radioassay
  • assayeth
  • radiobioassay
  • reassay
  • bioassayable
  • immunoassayable
  • radioimmunoassayable
  • assayest
Every word from Proto-Indo-European h₂eǵ- →