'anatomically' originates from Medieval Latin, specifically the word 'anatomicus,' where 'anatomia' meant 'dissection' or 'anatomy' and the suffix '-ally' forms adverbs.

'anatomicus' transformed into the English word 'anatomical,' and with the adverbial suffix '-ly,' it eventually became the modern English word 'anatomically.'

Initially, it meant 'in a way relating to anatomy or bodily structure,' and this meaning has remained consistent in modern usage.