age-old custom

Translations
древний обычай
The age-old custom of lighting candles during the festival is still practiced today.
Древний обычай зажигать свечи во время фестиваля до сих пор практикуется сегодня.
Definitions
A traditional practice or habit that has been followed for a very long time, often passed down through generations.
Words
age

noun
возраст
old

adjective
старый
custom

noun
обычай