The spelling of "blackson" is straightforward: it is simply the word "black" with the suffix "-son" added to the end. The IPA transcription for "blackson" is /blæksən/. The "a" is pronounced as the short vowel "æ" sound, and the "ck" is pronounced as the "k" sound. The "-son" at the end is pronounced as "sən." "Blackson" is a surname that may have originated from combining the names "Black" and "Johnson" or other similar surnames.