Legendary sits next to 3 phonetic neighbors — Legend, Legendry, and Leonidas are the closest matches by sound. Most share Legendary's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of legend, mythic, extraordinary"
"dawn counsel, wise before dawn"
"son of a free man"
"bold warrior, warrior chief"
"wealth, prosperity, riches"
"divine, godly"
"extended form of Zia"
"Descendant of the cloud; son of Neil"
"ancient one"
"small victorious one"
"divine favor"
"state of being free, liberty"
"Healer, one who cures"
"dear, precious one"
"dark, full; complete darkness"
"bird catcher, fowl hunter"
"gift of God"
"related to Cash, from Old French casse meaning chest or box"
"little warrior"
"possibly inspired by Zion, meaning monument or raised up"
Similar sound: These names share phonetic patterns with Legendary — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have English adjective origins, giving them the same cultural heritage as Legendary.
Rhythm: Legendary is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.