Meaning of descend

(verb) 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"

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"

do something that one considers to be below one's dignity

come as if by falling; "Night fell"; "Silence fell"