age sixty; one's sixties
Refers to the age of sixty or the decade of one's sixties. Often used in literary or formal contexts, but also in everyday speech when discussing age milestones.
He is still energetic even though he has reached sixty.
六十路の坂を越えた。
I have passed the hill of sixty (i.e., turned sixty).
An old native numeral expression for sixty or one’s sixtieth year; 路 is a conventional spelling element in age terms such as 四十路 and 五十路.