'proactively-constructed' originates from the combination of 'proactive' and 'constructed'. 'Proactive' comes from the Latin prefix 'pro-' meaning 'forward' and 'active' from 'actīvus', meaning 'engaged in action'. 'Constructed' is derived from Latin 'constructus', the past participle of 'construere', meaning 'to build together'.

'Proactively' evolved from the concept of 'proactive' in the 20th century, emphasizing anticipatory action. 'Constructed' has been used since the 15th century to denote the act of building or forming.

Initially, 'proactive' meant 'acting in advance', and 'constructed' meant 'built'. Together, they imply a forward-thinking approach to building.