'breast-related' originates from the English word 'breast' combined with the suffix '-related', where 'breast' refers to the front part of the human body between the neck and the abdomen, and '-related' indicates a connection or association.

'breast' changed from Old English word 'brēost' and eventually became the modern English word 'breast'.

Initially, 'breast' referred to the physical part of the body, but over time, 'breast-related' evolved to describe anything associated with or pertaining to the breast.