anniþen
This is a clause-level modifier and it means “soon”.
Sentence #32:
tō jāo anniþen tema jēwāri anhāri nīkan antāoni nīkan anwūlīñi anlōi ē rūjāñ ew sūjīr mo sarōña;
So that soon he saw the waters of the lakes with waves with the golden sands around it but not at back.