'nut-filled' originates from Modern English, specifically the compound of the words 'nut' and 'filled', where 'nut' ultimately comes from Old English 'hnutu' meaning 'nut' and 'fill' comes from Old English 'fyllan' meaning 'to fill'.

'nut' changed from Old English 'hnutu' to Middle English 'nutte' and became the Modern English 'nut'; 'fill' came from Old English 'fyllan' to Middle English 'fillen' and then 'fill', with the past participle 'filled' combining with 'nut' to form the compound adjective 'nut-filled' in Modern English.

Initially 'fill' meant 'to make full'; when combined as the compound 'nut-filled' the meaning became the specific descriptive sense 'containing nuts'.