'psychologically' originates from the Greek word 'psychē,' meaning 'soul' or 'mind,' combined with the suffix '-logy,' meaning 'study of,' and '-ally,' an adverbial suffix.

'Psychē' transformed into the Latin word 'psychologia,' and eventually became the modern English word 'psychology,' from which 'psychologically' is derived.

Initially, it meant 'related to the study of the mind,' but over time it evolved into its current meaning of 'in a manner related to the mind or mental processes.'