I believe it’s using sweat houses
It's summarizing when a passage is shortening by only focusing in the main points.
Answer:
The beginning lines contribute to Beowulf's characterization as a hero because he vows justice and revenge. Beowulf wants Grendel to pay therefore, he appears ready to confront him. In addition, the lines highlight that Beowulf is capable of handling the monster. According to the text, The Weders avenged (woes had they suffered) supports his readiness to face Grendel.
Explanation: