'angelomachy' originates from Greek, specifically the word 'angelomakhia,' where 'angelos' meant 'angel' and 'makhia' meant 'battle.'

'angelomakhia' was adopted into Late Latin as 'angelomachia,' and eventually became the modern English word 'angelomachy.'

Initially, it meant 'a battle between angels,' and this meaning has remained the same in modern usage, especially in theological or literary contexts.