Idah sits next to 3 phonetic neighbors — Ida, Ada, and Lyda are the closest matches by sound. Most share Idah's Germanic cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Hardworking, industrious; prosperous"
"Goddess; holy one (river name)"
"from Florence, Italy"
"a jewel-bright, exotic feminine name"
"Verse; poetic expression; creative spirit"
"land of the south wind"
"from the River Clyde (strong current)"
"enclosed garden"
"courageous, spirited"
"elf friend"
"noble, distinguished, illustrious"
Similar sound: These names share phonetic patterns with Idah — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Idah.
Rhythm: Idah is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.