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1. Move downward and lower, but not necessarily all the way
   "The barometer is descending";
   - fall, go down, come down
    
2. Be connected by a relationship of blood, for example
   "She was descended from an old Italian noble family";
   - derive, come
    
3. Do something that one considers to be below one's dignity
   - condescend, deign
    
4. Come as if by falling
   "Night descended";
   - fall, settle

Derived forms: descended, descends, descending

Type of: act, come, go, locomote, move, travel

Antonym: ascend