Luc sits next to 4 phonetic neighbors — Luke, Luck, and Luca are the closest matches by sound. Most share Luc's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"light, luminous"
"sword, blade"
"manly, strong"
"honoring God, to honor God"
"war, strife"
"bear"
"horse keeper, stable master"
"ruler of the people"
"white, pure"
"ascended, elevated"
"of the Claudian family, lame"
"carp fish (symbolic)"
"God has shown favor"
"little rock, harmony"
"who is like God?"
"oarsman, rower"
"son of Hendrik"
"gift of God"
"power of the homeland"
Similar sound: These names share phonetic patterns with Luc — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Luc.
Rhythm: Luc is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.