Breakdown of Masaj için evden çıkmana gerek yok.
ev
house
yok
there is not / non-existent
çıkmak
to go out / to leave / to exit / to break out / to arise (of a storm)
için
for
Questions & Answers about Masaj için evden çıkmana gerek yok.
How does the word çıkmana break down?
It is built from the verb root çık (leave/exit) + the verbal noun suffix -ma (acting like "leaving") + the 2nd person singular possessive suffix -n (your) + the dative case suffix -a (to). Literally, it means "to your leaving".
Why is there a dative suffix (-a) at the end of çıkmana?
The expression gerek yok (there is no need) requires the preceding noun phrase to take the dative case. You can think of the Turkish structure as literally saying "There is no need TO your leaving."
Why do we use evden (from the house) instead of just ev or evi?
In English, you "leave the house" using a direct object. However, in Turkish, the verb çıkmak (to exit/leave) always takes the ablative case (-den/-dan, meaning "from"). You are essentially saying "exiting from the house".
How do we know it means "You don't need to" if the word senin (your) isn't in the sentence?
The possessive suffix -n in çıkmana already specifies that it is "your" leaving. You could add senin before it for emphasis, but dropping the pronoun is standard and much more natural in everyday Turkish.