Jarrell sits next to 4 phonetic neighbors — Darrell, Terrell, and Jarrod are the closest matches by sound. Most share Jarrell's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"spear rule, lord of the spear (via Gerald)"
"from Evreux, from the Evreux region"
"ruler, one who rules"
"young wolf, wolf cub"
"God is gracious (from Shawn/Sean)"
"unique modern American name"
"healer"
"salutation, act of bowing"
"all-powerful"
"limitless, beyond measure"
"devoted one"
"God-like, incomparable"
"nickname form of Titus (defender)"
"he who supplants, holds by the heel"
"modern coinage combining Jay (God) and -ren suffix"
"songbird, free spirit"
"age, era, vast expanse of time"
"son of Ryer, from the rye field settlement"
"God has heard (via Sam = Samuel)"
"God is witness"
"creative modern name, possibly God is my help (from Azriel root)"
Similar sound: These names share phonetic patterns with Jarrell — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Jarrell.
Rhythm: Jarrell is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.