'entry-based' originates from Modern English, specifically the compound of the noun 'entry' and the adjective 'based', where 'entry' ultimately comes from Old French 'entrée' (from Latin intrare) meaning 'to enter' and 'based' comes from 'base' (Old French/Medieval Latin, ultimately from Greek 'basis') meaning 'foundation or support'.

'entry' developed in Middle English from Old French 'entrée' (derived from Latin 'intrare') meaning 'an act of entering' and later extended to mean 'a recorded item' (such as a journal entry). 'Base' came into English via Old French/Medieval Latin from Greek 'basis' meaning 'a stepping or foundation'; combined in Modern English as the compound adjective 'entry-based' to mean 'having its basis in entries'.

Initially, 'entry' primarily meant 'the act of entering' and 'base' meant 'foundation'; over time 'entry' broadened to include 'a recorded item' and the compound 'entry-based' evolved to mean 'based on those recorded items or individual entries'.