Etymology Explorer › English

Where does “delirium” come from?

Delirium comes from Latin delirium, from Latin deliro meaning to be mad, from Latin de- and a root related to Proto-Indo-European leys-.

delirium (English): A temporary mental state with a sudden onset,...

Definitions

  1. A temporary mental state with a sudden onset,...

Ancestry of “delirium”, step by step

StepLanguageWordMeaning
1Latindēlīrium—
2Latindēlīrō—
3Latindē-—
4Latindē—
5Latinpostbehind; after, since, besides, except; behind,...
6Latinposteablative singular of postis
7Proto-Italicposti—
8Proto-Indo-Europeanpósti—
9Proto-Indo-Europeanpósafterwards, post; by, at

Words derived from “delirium”

  • deliriant
  • delirifacient
Every word from Proto-Indo-European pós →