growing older; aging
General term for getting older, often used in the context of birthdays or the passage of years.
I've started to feel my age.
Maybe it's because of getting older, but I get tired more easily.
New Year's Eve aging ceremony; year-end age ritual
Traditional custom of celebrating everyone becoming a year older on New Year's Eve or the last night of winter, rather than on individual birthdays.
In the old days, families would gather on the night of the aging ceremony.
fish served with white rice on New Year's Eve
From 年 “year; age” and 取り “taking.” Under traditional age reckoning, everyone gained a year at New Year, giving the word its senses connected with aging and year-end observances.