German fauchen

← English puke (cognate)

← Proto-Germanic *pukaną (inherited)

← Middle High German pfūchen (inherited)

← Middle High German phūchen (mention)

← Old High German *pfūhhan (inherited)

← Proto-Indo-European *bew- (derived)

→ English fog (cognate)

→ English puke (mention)

→ Latin bucca (cognate)