This is the 4059th most frequent Korean word.
잃을
"잃을" means "to lose" (future or attributive form).
The word '잃을' is showing the future possibility of the subject losing his way, using '것 같다' to express an intuition.
그는 그의 길을 잃을 것 같았다.
He seemed like he was going to lose his way.
Here, '잃을' describes hypothetical future loss, indicating an absence of objects that can undergo loss.
나는 잃을 것이 아무것도 없다.
I have nothing to lose.
The word '잃을' is marking the future forms of the verb '잃다', indicating the potential near action of becoming lost.