Where does “sterling” come from?

sterling (Polish) comes from English sterling, from Middle English sterling, from Old English starlinc, from Old English -ling, from Old English lang, from Proto-West Germanic lang, from Proto-Germanic langaz, from Proto-Indo-European dlongʰos — long.

Ancestry of “sterling”, step by step

StepLanguageWordMeaning
1EnglishsterlingThe currency of the United Kingdom; especially...
2Middle Englishsterlingstarling
3Old Englishstarlinc
4Old English-lingadverbial suffix denoting direction, state or...
5Old Englishlanglong; lasting; old, ancient; advanced
6Proto-West Germaniclanglong
7Proto-Germaniclangazlong
8Proto-Indo-Europeandlongʰoslong
Every word from Proto-Indo-European dlongʰosEvery word from Proto-Germanic langazEvery word from Proto-West Germanic lang