different between lusting vs dusting

English

lusting

lusting (plural lustings)

The act of one who lusts.
- 1851, J. Bradford Sax, The Organic Laws; Or, the Laws which Govern the Human Organism
  These depraved lustings after flesh, grease, narcotics, etc., are a disgrace to human nature; you ought to be ashamed of them, and eradicate and destroy them as soon as possible.

dusting

dusting (plural dustings)

A light snowfall.
A light covering of something.
The act of removing dust from the furniture, as a household chore.
- 1908, Francis Hopkinson Smith, Peter: A Novel of Which He Is Not the Hero
  Strict orders had been given by Mrs. Breen the night before that certain dustings and arrangings of furniture should take place, the spacious stairs swept, and the hectic hired palms in their great china pots watered.
(colloquial) A beating.
A maintenance or comfort behaviour in which a bird flushes fine dirt through the feathers; dust-bathing.

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