IPA: /lɛˈdʒɛndəˌrɪli/
KK: /lɛˈdʒɛndəˌrɪli/
In a way that is famous or well-known, often because of a story or myth.
The hero legendarily defeated the dragon and saved the village.
Legendarily → It is formed from "legend" (from Latin *legenda*, meaning things to be read) and "-ary" (meaning relating to or connected with), combined with the adverbial suffix "-ly" (meaning in a manner of). The word "legendarily" means in a manner relating to legends or stories that are remarkable or extraordinary.
Think of 'legend' as something remarkable that is 'read' ('legenda') and remember that 'legendarily' means doing something in a way that is extraordinary or story-like.