Zenith sits next to 4 phonetic neighbors — Xena, Zena, and Zenobia are the closest matches by sound. Most share Zenith's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"the highest point in the sky"
"variant of Layla meaning night in Arabic"
"little red-haired one (via Russ root)"
"of the Jenkin family"
"bay laurel"
"salvation of God, God is salvation"
"month of May, springtime"
"night conversation, to entertain"
"God has favored me"
"laurel, crown"
"royalty, noble one from the heavens"
"industrious, hardworking"
"leek settlement, meadow town"
"river of milk (original Greek)"
"descendant of Raghallach"
"little bear"
"night beauty"
"oarsman"
"child of May, springtime"
"graceful, beautiful"
"modern invented name blending jay bird with elegant -line suffix"
Similar sound: These names share phonetic patterns with Zenith — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Zenith.
Rhythm: Zenith is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.