ninetieth
adjective
next after the eighty-ninth; being the ordinal number for 90.
The grammatical form denoting more than one person, place, thing, or idea.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
This is why those accounts stand in dollars and ninetieths, a notation so puzzling to many.
From History of the United States, Volume 2 by Elisha Benjamin Andrews