Pronunciation: [wˈɜːt ˈʌp] (IPA)
Correct spelling for the English word "wert up" is [wˈɜːt ˈʌp], [wˈɜːt ˈʌp], [w_ˈɜː_t ˈʌ_p] (IPA phonetic alphabet).
Correct spelling for wert up