This is the 4878th most frequent Turkish word.
esiri
"Esiri" means "captive" or "prisoner" in English.
Here, 'esiri' refers to being emotionally or metaphorically enslaved by love.
Onun sevgi esiri olduğunu herkes biliyor.
Everyone knows he is a slave to love.
In this sentence, 'esiri' describes the leaf as being under the control or influence of the wind.
Rüzgarın esiri olan yaprak, nereye gideceğini bilemez.
The leaf enslaved by the wind cannot know where it will go.
Here, 'esiri' is used metaphorically to indicate being dominated or constrained by time.