The act or process of soothing or comforting; the state of being calmed.
From 'besoothe' plus the suffix '-ment' (from French, originally Latin '-mentum'), which creates abstract nouns from verbs denoting action or state.
The '-ment' suffix is incredibly productive in English—you can add it to almost any verb to create a noun for that action, and 'besoothement' shows how this ancient pattern still works!
Complete word intelligence in one call. Free tier — 50 lookups/day.