Where does “Sn” come from?

Sn (Translingual) comes from Latin stannum, from Proto-Celtic *stagnom — tin.

Ancestry of “Sn”, step by step

StepLanguageWordMeaning
1Latinstannuman alloy of silver and lead; tin
2Proto-Celtic*stagnomtin
Every word from Proto-Celtic *stagnom →Every word from Latin stannum →