This is the 1674th most frequent Turkish word.
çıkmaya
"Çıkmaya" means "to go out" or "to set out" in English.
The word 'çıkmaya' is used here in the infinitive form, combined with the verb 'karar vermek' (to decide), expressing the action of going out.
Arkadaşlarım akşam yemeğinden sonra yürüyüşe çıkmaya karar verdiler.
My friends decided to go out for a walk after dinner.
In this sentence, 'çıkmaya' is again an infinitive verb form implying the act of going out, linked here to the necessity described by 'mecbur kalmak' (to have to).
Kitaplıkta aradığım kitabı bulamayınca dışarı çıkmaya mecbur kaldım.
When I couldn't find the book I was looking for in the library, I had to go outside.
Here, 'çıkmaya' forms part of a phrase with 'keyfini çıkarmak' (to enjoy), modified into an infinitive structure within a sentence.