Where does “beauty mark” come from?

beauty mark (English) comes from English beauty, from Middle English beaute, from Old French biauté, from Vulgar Latin bellitas, from Latin bellus, from Latin villus, from Latin vellus, from Proto-Indo-European h₂welh₁- — to rule; strong, powerful; hair; wool.

Ancestry of “beauty mark”, step by step

beauty mark traces back through two separate lines of ancestry.

via English beauty

StepLanguageWordMeaning
1EnglishbeautyThe quality of being attractive, pleasing, fine...
2Middle EnglishbeauteThe quality of being physically appealing;...
3Old Frenchbiautébeauty
4Vulgar Latinbellitasbeauty
5Latinbellusbeautiful, pretty, handsome; pleasant, agreeable,...
6Latinvillushair, tuft of hair, shaggy hair
7LatinvellusThe wool shorn from a sheep; fleece; wool; The...
8Proto-Indo-Europeanh₂welh₁-to rule; strong, powerful; hair; wool

via English Mark

StepLanguageWordMeaning
1EnglishMarkAbbreviation of Markarian
2Germanmarkmark any of various European monetary units
3LatinMārcus
4LatinMartīnus
5Latin-īnusof or pertaining to; -ine
6Proto-Italic-īnosof/belonging to
7Proto-Indo-European-iHnosCreates adjectives of materials
8Proto-Indo-European-no-adjectival suffix
Every word from Proto-Indo-European h₂welh₁-Every word from Latin vellusEvery word from Latin villus