She found that the tranquillity of the lakeside scenery enabled her to forget her worries for a time.
Diction
The Gaelic word for "tranquility" is suaimhneas.
Yes, the noun 'tranquility' is a common noun; a general word for a state of peace and quiet; a word for any kind of tranquility.
The root word for tranquility is "tranquil," which comes from the Latin word "tranquillus" meaning calm or peaceful.
The Chinese garden had an amazing tranquility.
tranquility = a state of calm, free from disturbance eg In Scotland is Glenmorangie, the Glen of Tranquility, so called because it was once a place of perfect peace and quiet
Instead of the word security, I would use the word tranquility or peace of mind. Buddhism provides a path towards peace, tranquility and happiness through understanding the world as it is and training the mind to respond to that world.
tranquility
Anxiety
You could use "un-," as in "she was in a state of unrest." Or the word "arm" to form "armrest," but that's not a prefix.
Tranquil, tranquilize.
Yes, there is, but i can only think of one at the moment...TRANQUILITY! ur welcome :) ^-^