accrue; autumn; capitulation; come; come down; crepuscle; crepuscule; declension; declination; decline; declivity; decrease; descend; descent; devolve; diminish; dip; downfall; downslope; drop; dusk; evenfall; fall down; flow; free fall; gloam; gloaming; go down; hang; lessen; light; nightfall; pass; pin; precipitate; return; settle; shine; spill; strike; surrender; tumble; twilight;