diffuse

Etymology 1

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

verb

1. (transitive) To spread over or through as in air, water, or other matter, especially by fluid motion or passive means.
2. (intransitive) To be spread over or through as in air, water, or other matter, especially by fluid motion or passive means.
   Food coloring diffuses in water.
   The riot diffused quite suddenly.

Etymology 2

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

adj

1. Everywhere or throughout everything; not focused or concentrated.
   Such a diffuse effort is unlikely to produce good results.
2. Wordy; verbose.