'feralize' originates from English, specifically by adding the productive verb-forming suffix '-ize' to the adjective 'feral', which ultimately comes from Latin 'ferus' meaning 'wild'.

'feralize' was formed in modern English by combining 'feral' (from Latin 'ferus' via Medieval/Modern English) with the verb suffix '-ize'; 'feral' itself derived from Latin roots referring to wildness and 'feralize' follows a common pattern of creating verbs meaning "make X" from adjectives.

Initially the root ('ferus'/'feral') meant 'wild' in Latin, and over time English formed 'feralize' to mean 'make wild' or 'become wild', a direct extension of that core sense.