From Wiktionary, the free dictionary
mýr n (genitive singular mýrs, no plural)
- (archaic) mass of people, crowd
- Synonyms: fjöldi, fylking, grói, mannfjöldi, mergð, múgur, skari, söfnuður, þrengsli, þröng, þvaga, þyrping, örtröð, ös
Declension of mýr (sg-only neuter)