Etymograph

English

aecidium

Aecidium comes from New Latin aecidium, and goes back to Ancient Greek αἰκίᾱ ‘injury’.

  1. Ancient Greekc. 800–300 BCEαἰκίᾱaikíā‘injury’
  2. New Latinc. 1500–1900aecidium
  3. Englishtodaysame form

attested reconstructed ? uncertain or disputed

Lineage

  1. Ancient Greekc. 800–300 BCEαἰκίᾱaikíā‘injury’
  2. New Latinc. 1500–1900aecidium
  3. Englishtodaysame form

The story

However Merriam-Webster takes the origin from Ancient Greek οἰκίδιον (oikídion) and refers to the botanist John Hill, in his A General Natural History, or New and Accurate Descriptions of the Animals, Vegetables, and Minerals, of the Different Parts of the World, vol. II, A History of Plants (London: Printed for Thomas Osborne, 1751), p. 64: "We have called this genus, distinguished by its peculiar cells, Æcidium, from the Greek οικιδιον, cellula."

Today it means

noun The cupulate fruiting body borne upon the mycelium of certain fungi commonly parasitic upon specimens of the Compositae, Lamiaceae, Leguminosae, and Ranunculaceae families

Language periods are conventional ranges, not dates for this word.

Etymograph / Ancient Greek αἰκίᾱ / aecidium