aeruginous

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aeruginous

Where it comes from

From Medieval Latin aerūginōsus (“rust-colored”) directly and via Middle French erugineux (“verdigris-colored”), from Latin aerūginōsus (“rusty”), from aerūgō (“rust”) + -ōsus (“-ose: forming adjectives”), from aes (“copper, bronze, brass”) + -ūgō (“forming nouns related to thin coatings or coverings”).

adjective more aeruginous · most aeruginous · eruginous · æruginous

Synonym of verdigrisy, of or related to copper carbonate, bluish green. There was definitely some aeruginous material on that door handle.
Similar: verdigrisy, of or related to copper carbonate, bluish green
archaic Synonym of rusty, of or related to iron oxides.
Similar: rusty, of or related to iron oxides

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MLA

"aeruginous." Wiktionary, via Micwyn, micwyn.com/word/aeruginous. Accessed 6 Nov. 2026.

APA

aeruginous. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/aeruginous

Chicago

"aeruginous." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/aeruginous.

BibTeX

@misc{aeruginous_2026,
  title = {aeruginous},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/aeruginous},
  urldate = {2026-11-06}
}