dynja dyn, dunda, dunit v
1.
to boom, resound (fram reið �ðinn, foldvegr dundi);
2.
to gush, shower, pour; blóð dynr ór sárum es, blood gushes out of his wounds; dundi ákaft regn ór lopti, the rain poured down in streams; dundu á þá (or þeim) vápnin, spjótin, the weapons (spears) showered upon them