The spelling of the word "daffadilly" can be confusing because it is often mistaken for the more common term "daffodil." However, the correct spelling and pronunciation of this word is "daffadilly" /dæfəˈdɪli/, with emphasis on the second syllable. The word "dilly" is believed to be a variant of "delightful," adding to the whimsy of the word's sound. While it is not commonly used in contemporary English, the term is still used as a playful, affectionate term for a person or thing that is delightful or charming.
The word "daffodil" has an interesting etymology. Originally, it came from the Middle English word "affodill" or "affodille", which was derived from the Medieval Latin "affodillus". The Medieval Latin term was likely borrowed from the Late Latin "asphodelus", which referred to a type of lily. Ultimately, "asphodelus" can be traced back to the Ancient Greek word "asphodelos", which denoted the same flower. Over time, "affodill" transformed into "daffodil" due to linguistic changes and the influence of the Dutch word "de affodil". "Daffodilly" is an older form of the word "daffodil", used less frequently today.