What are some nine letter words with 2nd letter Y and 3rd letter A and 7th letter I and 9th letter S?

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern -YA---I-S. That is, nine letter words with 2nd letter Y and 3rd letter A and 7th letter I and 9th letter S. In alphabetical order, they are:

cyanamids

dyarchies