1/I was wondering why the penultimate i-circle is kept in the -tivité ending. Is it to avoid possible confusion with “-vier”/”vié”, the ye sign being difficult to curve neatly after V? or is there no specific reason and we could just get rid of that penultimate i-circle?
2/My manual is silent about the -sivité ending, yet in my dictionary I notice that agressivité, exclusivité, nocivité, passivité, all lack the antepenultimate vowel (so the ending is written -s-vité). Was it intentionally omitted from the list (in paras. 243 and 244 in my manual)? I don’t seem to find anywhere else a rule stating that the i-circle between S and V should be removed.