This is the 7274th most frequent Russian word.
воронежской
"Voronezhskoy" is the adjectival form of "Voronezh," meaning "of Voronezh" or "related to Voronezh," a city in Russia.
The word 'Воронежской' acts as an adjective to describe the region belonging to or associated with Voronezh.
Я приехал из Воронежской области.
I came from the Voronezh region.
In this sentence, 'Воронежской' serves as an adjective to indicate the cuisine type originating from Voronezh.
Это традиционное блюдо Воронежской кухни.
This is a traditional dish of Voronezh cuisine.
Here, 'Воронежской' is used to descriptively specify which river is being referred to, showing possession or association.