'Psychology' means 'study of the soul' — coined by Renaissance scholars, made experimental in the late 1800s.
The scientific study of the human mind and its functions, especially those affecting behaviour; the mental characteristics or attitude of a person or group.
From Modern Latin 'psychologia,' coined in the sixteenth century by humanist scholars, from Greek 'psychē' (breath, spirit, soul, mind) + 'logos' (word, discourse, study). The term appeared in various Latin treatises from the 1570s onward. Greek 'psychē' originally meant 'breath' (the breath of life) and came to mean 'soul' and 'mind.' The PIE root is *bhes- (to