Jennings sits next to 4 phonetic neighbors — Jennie, Pennington, and Flemings are the closest matches by sound. Most share Jennings's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious (descendant of John)"
"bright-headed, fair"
"precious green gem"
"maiden, girl"
"tower, elevated place"
"invented modern name"
"modern American creation"
"princess, noblewoman"
"descendant of the ruler"
"exalted, sublime, high"
"pearl"
"grace, favor"
"expert, most skilled"
"dark beauty, gracious one"
"beloved"
"diseased (alternate Hebrew interpretation)"
"brave in battle"
"prosperous, fortunate"
"God has favored me"
"bear strength"
"fortunate, favored by luck"
Similar sound: These names share phonetic patterns with Jennings — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English / Hebrew origins, giving them the same cultural heritage as Jennings.
Rhythm: Jennings is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.