The original meaning of the word 'mind' was simply 'the capacity of memory'.
Then, from the 14th century, the meaning gradually evolved.
The summary definition of the word mind as it is currently defined, derived from the Oxford English Dictionary, the highest authority on the English language, is as follows:
Mind is the totality of the human conscious and unconscious - not confined to just the functioning of the brain – but including all our capacities of awareness, memory, perception, knowing, thinking, feeling, will, desire, instinct, visualisation, imagination, and intuition.
Mind encompasses all the non-physical faculties of the human being, enabling all aspects of conscious awareness.
Mind is therefore the seat of human consciousness but not a physical aspect of the body.
Mind must therefore be the principal functional aspect of the self...