legendarily

adverb2

1. •
   In the manner of something legendary.

   • The school had taken the first four places and won seven of the twelve exhibitions. The teacher’s notes and private lessons, legendarily virtuous, had triumphed once again. — 1961
2. •
   According to legend.

   • Amongst one-eyed people we have the Arimaspians and the Cyclops. The former were a race in Scythia, and were legendarily supposed to be in constant war with the gryphons […] — 1886