This is the 36th most frequent Finnish word.
ettei
"Ettei" means "so that not" or "in order that not" in English.
Here, "ettei" introduces a clause of reason describing the fear (negative outcome).
Pelkään, ettei hän tule ajoissa.
I am afraid that he will not arrive on time.
In this example, "ettei" serves as a conjunction introducing a purpose clause ensuring clarity (negative outcome).
Järjestin kokouksen, ettei asia jäisi epäselväksi.
I arranged the meeting so that the matter would not remain unclear.
In this sentence, "ettei" is used as a conjunction introducing a purpose clause negating the possibility of getting wet (negative outcome).