'calmly-settled' originates from the combination of 'calm' and 'settle', where 'calm' meant 'free from disturbance' and 'settle' meant 'to establish or become established in a stable position'.

'calm' changed from the Old English word 'calm' and 'settle' from the Old English 'setlan', eventually forming the modern English phrase 'calmly-settled'.

Initially, 'calm' meant 'quiet' and 'settle' meant 'to sit', but over time they evolved into their current meanings of 'tranquil' and 'establish stability'.