Free from disturbance; calm and peaceful. Characterized by serenity and lack of agitation or commotion.
From Latin 'tranquillus' meaning 'quiet, calm, still', possibly from 'trans-' (across) and a root meaning 'to be still'. Entered English in the 15th century through French influence.
The Latin root suggests something that maintains stillness 'across' all conditions - not just absence of noise, but a deeper equilibrium that persists through potential chaos. It's calmness that has been tested and proven stable.
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