Cyir sits next to 5 phonetic neighbors — Seer, Cyrus, and Sire are the closest matches by sound. Most share Cyir's American English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"variant of Seer (prophet, visionary)"
"from the broken land clearing"
"from the western meadow or clearing"
"bright, shining (variant interpretation)"
"song, joy"
"elf ruler"
"settlement on a road"
Similar sound: These names share phonetic patterns with Cyir — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have American English origins, giving them the same cultural heritage as Cyir.
Rhythm: Cyir is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.