'atom-involved' is a compound word formed from 'atom' and 'involved'. 'Atom' originates from the Greek word 'atomos', meaning 'indivisible'. 'Involved' comes from the Latin 'involvere', meaning 'to roll into'.

'Atom' was adopted into English from the Latin 'atomus', which was derived from the Greek 'atomos'. 'Involved' evolved from the Latin 'involvere', through Old French 'envolver', to Middle English 'envolven'.

Initially, 'atom' referred to the smallest indivisible unit of matter, while 'involved' meant 'entangled'. Together, 'atom-involved' now refers to processes or phenomena that include atoms.