'historicise' originates from English, specifically the word 'historicize', where 'historic-' meant 'related to history' and '-ize' meant 'to make or to treat as'.

'historicise' changed from the Modern English verb 'historicize' (formed in the 19th century) which itself was built from the adjective 'historic' (from Latin 'historicus', from Greek 'historia') plus the verb-forming suffix '-ize' (from Greek '-izein' via Late Latin '-izare' and Old French '-iser').

Initially it meant 'to make or recount as history'; over time it has come to mean more specifically 'to place, interpret, or treat something within its historical context'.