'notifiable' originates in Modern English as the adjective formed from the verb 'notify' plus the suffix '-able' (from Latin '-abilis' via Old French), where 'notify' comes from Latin 'notificare' meaning 'to make known' and '-able' meant 'able to be'.

'notifiable' developed from Middle English/Modern English 'notify' (from Old French/Medieval Latin 'notificare'), with the productive adjective-forming suffix '-able' eventually producing the modern English adjective 'notifiable'.

Initially, the root meant 'to make known' (Latin 'notificare'); over time the adjective specialized to the sense 'able or required to be notified', particularly in legal and public-health contexts where it means 'required to be reported'.