What are some nine letter words with 1st letter A and 4th letter O and 6th letter R and 9th letter H?

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 6 words with the pattern A--O-R--H. That is, nine letter words with 1st letter A and 4th letter O and 6th letter R and 9th letter H. In alphabetical order, they are:

aerograph
allograph
arcograph
autograph
autotroph
auxotroph