Where does “pursang” come from?

pursang (French) comes from French pur, from Middle French pur, from Old French pur, from Old French autre, from Old French vie, from Old French viḍe, from Latin vitam, from Latin vīta — to live.

Ancestry of “pursang”, step by step

pursang traces back through two separate lines of ancestry.

via French pur

StepLanguageWordMeaning
1Frenchpurpure
2Middle Frenchpur
3Old Frenchpurpure; Alternative form of por
4Old FrenchautreAlternative form of altre; other
5Old Frenchvielife
6Old Frenchviḍe
7Latinvitamaccusative singular of vīta
8Latinvītalife
9Latinvīvōto live
10Proto-Italicgʷīwōlive, be alive
11Proto-Indo-Europeangʷíh₃wetito live, to be alive
12Proto-Indo-Europeangʷih₃wósalive, living
13Proto-Indo-Europeangʷeih₃w-to live

via French sang

StepLanguageWordMeaning
1Frenchsangblood
2Old Frenchsancblood
3Vulgar Latinsanguem
4Latinsanguinemaccusative singular of sanguis
5Latinsanguen
6Latinsan-
7Proto-Indo-Europeanh₁sh₂-én-
8Proto-Indo-Europeanh₁ésh₂r̥blood
Every word from Proto-Indo-European gʷeih₃w-Every word from Proto-Indo-European gʷih₃wósEvery word from Proto-Indo-European gʷíh₃weti