Cubby sits next to 3 phonetic neighbors — Cubbie, Tubby, and Bobby are the closest matches by sound. Most share Cubby's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"young bear, small animal"
"high, noble, strong"
"grey, grey-haired"
"old river, ancient waters"
"the king"
"horse lover"
"friend (invented by J.M. Barrie from 'fwendy')"
"who is like God?"
"adventurous, wanderer"
"rocky ground"
"lean, thin one"
"warm earthy hue; tanned"
"invented name with La- prefix (the) and Voris (from the ford, Dutch..."
"noble kind"
"high, noble"
"label, identifying mark; to touch lightly"
"shield wolf (derived from Randy/Randolph)"
Similar sound: These names share phonetic patterns with Cubby — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have English origins, giving them the same cultural heritage as Cubby.
Rhythm: Cubby is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.