IPA: /ˈdʌsti/
KK: /ˈdʌsti/
Having a lot of dust on the surface or being covered with fine particles.
The old book sat on the shelf, dusty and forgotten.
Comparative: dustier
Superlative: dustiest
Dusty → It is formed from "dust" (from Old English *dust*, meaning fine particles of matter) and "-y" (a suffix used to form adjectives meaning characterized by or having the quality of). The word "dusty" describes something that is characterized by or covered in fine particles of dust.
Think of fine particles of matter ('dust') that cover surfaces, and remember that 'dusty' means having a lot of dust.