Where does “cinqfoil” come from?

cinqfoil (Old French) comes from Old French foil, from Latin folium, from Proto-Italic *foljom, from Proto-Indo-European bʰolh₃yom, from Proto-Indo-European bʰleh₃-, from Proto-Indo-European bʰel-, from Proto-Indo-European bʰōl-.

Ancestry of “cinqfoil”, step by step

cinqfoil traces back through two separate lines of ancestry.

via Old French foil

StepLanguageWordMeaning
1Old Frenchfoilleaf
2Latinfoliuma leaf; a petal; a sheet or leaf of paper
3Proto-Italic*foljom
4Proto-Indo-Europeanbʰolh₃yomleaf
5Proto-Indo-Europeanbʰleh₃-bloom, flower
6Proto-Indo-Europeanbʰel-to sound; to speak, roar, bark; shiny, white; to...
7Proto-Indo-Europeanbʰōl-

via Old French cinq

StepLanguageWordMeaning
1Old FrenchcinqAlternative form of cinc: five; five

Words derived from “cinqfoil

Every word from Proto-Indo-European bʰōl-Every word from Proto-Indo-European bʰel-Every word from Proto-Indo-European bʰleh₃-