alleviation

[LL. alleviatio.]

1. The act of alleviating; a lightening of weight or severity; mitigation; relief.

2. That which mitigates, or makes more tolerable.

I have not wanted such alleviations of life as friendship could supply.

noun

Freedom, especially from pain: assuagement, ease, mitigation, palliation, relief. See increase/decrease.

The noun has 2 meanings:

Meaning #1: the feeling that comes when something burdensome is removed or reduced
  Synonyms: relief, assuagement

Meaning #2: the act of reducing something unpleasant (as pain or annoyance)
  Synonyms: easing, easement, relief