Jameison is of American origin, derived from the Scottish surname Jameson, which itself stems from an Old French personal name, Jamet. The name is composed of two elements: 'James', meaning 'supplanter' or 'Following', and '-son', indicating 'son of'. Thus, Jameison could be interpreted as 'son of James'. This name has been used in the United States since the mid-20th century and gained popularity due to its unique spelling and sound.
"Jameison experienced a notable increase in popularity from 2014 onwards, with 7 births that year and peaking at 14 in 2015. However, it appears to have since declined, averaging around 6 births annually."