Upon its housing no fire would catch; and though now and again some great beast that hauled it would go mad and spread stamping ruin among the orcs innumerable that guarded it, their bodies were cast aside from its path and others took their place.
Then I thought in my heart that we drew near to the Sea; for wide was the water in the darkness, and sea-birds innumerable cried on its, shores.
Down from the hills on either side of the Morannon poured Orcs innumerable.
There are no more uses of "innumerable" in the book.
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There were three hundred wells, fifty thousand date trees, and innumerable colored tents spread among them.