traditionally rooted

Translations
традиционно укоренившийся
The festival is traditionally rooted in ancient customs.
Фестиваль традиционно укоренился в древних обычаях.
Definitions
Having deep connections to or being based on long-established customs, practices, or beliefs that have been passed down through generations.
Words
traditionally

adverb
традиционно
rooted

adjective
укоренённый