𑀘𑀗𑁆𑀓𑀫𑁆 (Old Tamil) comes from Sanskrit शङ्ख, from Proto-Indo-Aryan śankʰás, from Proto-Indo-Iranian ćankʰás, from Proto-Indo-European ḱóngʰ-os, from Proto-Indo-European ḱongʰ- — shell, mussel.
𑀘𑀗𑁆𑀓𑀫𑁆 (Old Tamil): union