Janet sits next to 5 phonetic neighbors — Janette, Jeanette, and Janel are the closest matches by sound. Most share Janet's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious"
"reaching the summit, aspiring to the heights"
"of great value, beloved, cherished"
"modern creative variant of Amy + Yah"
"holder of the heel"
"bright + spring"
"to be of worth, valor"
"great mother, goddess"
"church settlement, village with a church"
"beautiful voice, fair-voiced"
"possibly related to Eliza (my God is an oath)"
"rising, ascending"
"harmony, concord, agreement"
"water-born"
"bright-headed, strife"
"eldest daughter"
"exalted, high, heavenly"
"my pleasantness"
"exalted, ascending, noble"
"diminutive of Philippa/Filippa"
"broad meadow, marshy clearing"
Similar sound: These names share phonetic patterns with Janet — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Janet.
Rhythm: Janet is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.