Like Finnish and Hungarian, Estonian is a somewhat <answer>agglutinative</answer> language, but unlike them, it has lost vowel harmony, the front vowels occurring exclusively on the first or stressed syllable, although in older texts the vowel harmony can still be recognized. Furthermore, the apocope of word-final sounds is extensive and has contributed to a shift from a purely <answer>agglutinative</answer> to a fusional language.[citation needed] The basic word order is subject–verb–object.
What language feature does Estonian, Finish and Hungarian share? 
agglutinative