This attribute refers to something being searched for. The inanimate singular can also refer to the event of looking for something. Here jatōna jaxōsa jōrre is: the road, it’s being searched for, the ending of that. It’s probably not the way a better writer (than me) would put it since jōrre is really only modifying jaxōsa and not jatōna jaxōsa.
ē ñi ancālli tō malō aþ ñamma jatōna jaxōsa jōrre aþ ñi sāen rā jatarūni jawēhi nō;
And the sun’s heat came, and he stopped searching for the road and started following mirages.