Just started learning Finnish. I have looked a little at conjugation and declension, haven't really moved onto digesting vocabulary yet. Also, this will be my first agglutinative language! I am getting the hang of vowel harmony and consonant gradation, however... Why is the illatiivi form of olkapää: olkapäässä, and not olkapäässa? The way I see it, the harmony of the word is dictated by the vowel of the initial syllable, which is "ol". "O" is a back vowel, so the word has back vowel harmony. So, why is the illative suffix "-ssä", where "ä" is a front vowel, and not "-ssa", because "a" is a back vowel and is in line with the entire word's harmony? Thanks in advance.