I. ˈsikstēə̇th, -tiə̇ adjective
Etymology: Middle English sixtithe, from Old English sixtigotha (akin to Old Norse sextugandi ), from sixtig sixty + -otha, -tha -th
1. : being number 60 in a countable series
the sixtieth day
— see number table
2. : being one of 60 equal parts into which something is divisible
a sixtieth share of the money
II. noun
( -s )
1. : number 60 in a countable series
2. : the quotient of a unit divided by 60 : one of 60 equal parts of something
one sixtieth of the total