The spelling of the word "Hadly" may seem unusual to some, but it is actually a phonetic representation of the way the word is pronounced. In IPA phonetic transcription, "Hadly" is spelled /ˈhædli/. The "d" sound in the middle of the word is pronounced as a flap or tap, similar to the "tt" sound in the word "butter". This sound is often heard in American English and gives the word a slightly different sound than if it were spelled "Haddley". Overall, the spelling accurately reflects the pronunciation of the word.