Jhonathan sits next to 3 phonetic neighbors — Jonathan, Johnathan, and Jonathon are the closest matches by sound. Most share Jhonathan's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God has given"
"place name origin: a hundred in Cornwall, England"
"who is like God? (rhetorical, meaning no one)"
"the sun, solar light"
"beloved of God"
"mine, my own"
"the lord (divine title)"
"maker, builder"
"renowned in battle"
"son of Henne (Henry)"
"king's ford"
"new house"
"from the field, outdoors warrior"
"to flow down, descend"
"overcoming, prevailing"
"lion-man"
"of Zeus, belonging to Zeus"
"companion, horse"
"small amphibian (secondary association)"
"day"
"diminutive of Nicholas"
Similar sound: These names share phonetic patterns with Jhonathan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Jhonathan.
Rhythm: Jhonathan is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.