The spelling of the word "gotten" is peculiar to American English, while British English uses "got". The word is pronounced with a schwa sound between the "g" and "t" (shown as /ˈɡɑtən/ in IPA), and the vowel in the second syllable is pronounced as a short "u" sound (/ˈɡɑtən/). The spelling "gotten" comes from the archaic past participle form in English, which was commonly used in the past but has now been replaced by the regular form "got".