Where does “milk skin” come from?

milk skin (English) comes from English milk, from Middle English milk, from Old English meolc, from Proto-West Germanic meluk, from Proto-Germanic meluks, from Proto-Indo-European h₂melǵ- — to milk; milk.

milk skin (English): A sticky film of protein that forms on top of dairy milk and foods containing dairy milk (such as hot chocolate and some soups)

Definitions

  1. A sticky film of protein that forms on top of dairy milk and foods containing dairy milk (such as hot chocolate and some soups)

Ancestry of “milk skin”, step by step

milk skin traces back through two separate lines of ancestry.

via English milk

StepLanguageWordMeaning
1EnglishmilkA white liquid produced by the mammary glands of...
2Middle Englishmilkmilk
3Old Englishmeolcmilk
4Proto-West Germanicmelukmilk
5Proto-Germanicmeluksmilk
6Proto-Indo-Europeanh₂melǵ-to milk; milk

via English Skin

StepLanguageWordMeaning
1EnglishSkinThe outer protective layer of the body of any animal, including of a human
2Middle EnglishskynThe skin; A layer or cover located in the inside...
Every word from Proto-Indo-European h₂melǵ- →Every word from Proto-Germanic meluks →Every word from Proto-West Germanic meluk →