This is the 7470th most frequent Russian word.
дарко
The word "дарко" does not exist in standard Russian; it may be a misspelling or slang.
Here, 'Дарко' functions as a proper noun, specifically a personal name.
Дарко – это имя мальчика из Сербии.
Darko is a name of a boy from Serbia.
In this usage, 'дарко' metaphorically represents darkness, indicating a mood or emotion.
Он взглянул на меня с дарком во взгляде.
He looked at me with a darkness in his gaze.
In literary contexts, 'дарко' can symbolize mystery or the unknown.