This is the 7221st most frequent Russian word.
вечернего
"Evening" or "of the evening."
The word 'вечернего' is used here to describe the city as being in the evening state, modifying the noun 'городу' (city).
Я люблю гулять по вечернему городу.
I love walking in the evening city.
Here, 'вечерний' describes the light originating from the evening, giving a spatial and temporal context to 'свет' (light).
Вечерний свет создаёт уютное настроение.
The evening light creates a cozy atmosphere.
In this sentence, 'вечернюю' describes the newspaper as one published in the evening, modifying 'газету' (newspaper).