Lilac sits next to 3 phonetic neighbors — Lila, Layla, and Violet are the closest matches by sound. Most share Lilac's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"bluish, pale purple"
"strength in battle"
"from the Sabine king Titus Tatius"
"new star by the lake"
"the sun (divine light)"
"rosy, heathen"
"of the Cornelian gens"
"poetry, motto"
"beautiful friend"
"triumph, success in struggle"
"brave lion"
"autumn, harvest season"
"apricot blossom"
"door of paradise (Jannah)"
"hazel tree, nut-bearing shrub"
"firebrand, blazing one"
"dark, dark-haired"
"brave as a lion"
"from Devon, the deep places"
"descended from Jove (Jupiter)"
"relating to the lyre, musical, lyrical"
Similar sound: These names share phonetic patterns with Lilac — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Persian origins, giving them the same cultural heritage as Lilac.
Rhythm: Lilac is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.