[4] þingdrífu ‘assembly-attending’: Though unparalleled, the adj. is plainly a derivative of drífa ‘move, drive’. Kock (NN §1121) would emend to þingdrífum in order to have the word modify mǫnnum ‘people’ in l. 1, on the basis of perceived OE parallels. But the epithet more meaningfully describes Magnús, characterizing the boy as kingly.