Alicent sits next to 3 phonetic neighbors — Alice, Alison, and Millicent are the closest matches by sound. Most share Alicent's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"noble, kind"
"warm cloak (Roman garment)"
"boomerang"
"high tower"
"winding valley or crooked stream"
"twin"
"Who is like God? (rhetorical — no one)"
"fair one, gentle"
"settlement of Paega (a personal name)"
"pearl"
"grace, favor"
"night, beloved"
"A friendly or amiable person"
"modern blended name"
"divine life, eternal life"
"old friend, trusted companion"
"noble, nobility"
"murmuring rock (from the Rhine)"
"wren meadow (compound)"
"one who enchants or charms"
"grace, favor of God"
Similar sound: These names share phonetic patterns with Alicent — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old High German (Adalheidis) origins, giving them the same cultural heritage as Alicent.
Rhythm: Alicent is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.