Etymology

diffuse

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Today it means: To spread (something) over or through as in air, water, or other matter, especially by fluid motion or passive means. Full definition →

Middle French diffuser ← Latin diffūsus
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diffuse · verb1

  1. Latin · derived fromdiffūsus
  2. Middle French · derived fromdiffuser
  3. English todaydiffuse

From Middle French diffuser, from Latin diffūsus, past participle of diffundere, from dis- + fundere.

diffuse · adjective2

  1. Latin · derived fromdiffūsus
  2. Middle English · inherited from*diffuse
  3. English todaydiffuse

From Middle English *diffuse (attested in adverb diffuseli), from Latin diffūsus.

Etymology from Wiktionary, CC BY-SA 4.0.