'deleter' originates from English, specifically formed from the verb 'delete' plus the agentive suffix '-er', where 'delete' comes from Latin 'delēre' meaning 'to destroy, blot out'.

'deleter' was formed in modern English by adding the agent noun suffix '-er' to the borrowing 'delete' (from Latin 'delēre' via Medieval/Scientific Latin and later borrowings into English).

Initially the Latin root meant 'to destroy or blot out'; over time in English the sense narrowed to 'to remove written or digital material', and 'deleter' came to mean 'one or that which removes (text/data)'.