'pre-celebratory' originates from the prefix 'pre-' meaning 'before' and the word 'celebratory,' which comes from the Latin 'celebratus,' meaning 'celebrated.'

'celebratus' transformed into the English word 'celebrate,' and eventually became part of the compound word 'pre-celebratory.'

Initially, it meant 'before a celebration,' and this meaning has largely remained the same in modern usage.