[lull] vt [ME; prob. of imit. origin] (14c) 1: to cause to sleep or rest: soothe
2: to cause to relax vigilance
[2]lull n (1719) 1 archaic: something that lulls; esp: lullaby
2: a temporary pause or decline in activity "the early morning ~ in urban noise": as a: a temporary calm before or during a storm b: a temporary drop in business activity