descend in WordNet English dictionary

1. come from; be connected by a relationship of blood, for example
   "She was descended from an old Italian noble family"; "he comes from humble origins"
   derive  come  descend 
   
2. move downward and lower, but not necessarily all the way
   "The temperature is going down"; "The barometer is falling"; "The curtain fell on the diva"; "Her hand went up and then fell again"
   descend  fall  go down  come down 
   
3. do something that one considers to be below one's dignity
   condescend  deign  descend 
   
4. come as if by falling
   "Night fell"; "Silence fell"
   fall  descend  settle