Wiktionary
eighty-sixth
n. (context fractional English) One of eighty-six equal parts of a whole. num. (context ordinal English) The ordinal form of the number eighty-six, describing a person or thing in position number 86 of a sequence.
Usage examples of "eighty-sixth".
But as people from Skybowl arrived on the afternoon of the eighty-sixth day of Winter, the castle once more threatened to burst at the seams.