How activated a state is, from calm to intense. One of the three axes a feeling can be located on, apart from whether it is pleasant.
From AROUSE, Middle English rousen, of uncertain origin, perhaps a falconry term for a hawk shaking out its feathers before flight; how activated a state is, from calm to intense.
How activated a state is, from calm to intense, one axis a feeling sits on apart from whether it is pleasant.