What does "Xianyang" mean by "salty"?

yang: in ancient times, Shan Zhinan and the north of the water were called yang

salty: it means all, all and all.

Xianyang is located on the north bank of the Weihe River, in Shan Zhinan, and it is called zōng according to the common sense named in ancient times. So it was named Xianyang.

I hope it helps you.