A yellow spring flower with a trumpet-shaped center, a variant spelling of daffodil.
An older or dialectal variant of 'daffodil', from Dutch 'de affodil'. The '-y' ending was common in Early Modern English for plant names, especially in poetic or countryside speech.
This whimsical spelling is mostly obsolete now, but it survived long enough in poetry and children's literature that we can still see why Shakespeare's contemporaries loved calling it 'daffodilly' instead of the plainer 'daffodil.'
Complete word intelligence in one call. Free tier — 50 lookups/day.