(sim′ər) v.i.
1. To boil gently or with a singing sound; be or stay at or just below the boiling point.
2. To be on the point of breaking forth, as with rage.
—v.t.
3. To keep at or just below the boiling point.
—noun The state or process of simmering; figuratively, a busy pondering over something, or a state of repressed emotion. [<obs. simper boil; origin unknown; prob. imit.]

(sim′ər) noun Scot.
Summer.