Where does “tinfoil” come from?

Tinfoil comes from English tin and English foil, where foil derives from Latin fullo (fuller, one who fulls cloth) and Latin folium (leaf), both ultimately from Proto-Indo-European bʰel- (to swell or bloom).

tinfoil (English): A thin, pliable sheet of tin or an alloy of tin...

Definitions

  1. A thin, pliable sheet of tin or an alloy of tin...

Ancestry of “tinfoil”, step by step

tinfoil traces back through two separate lines of ancestry.

via English FOIL

StepLanguageWordMeaning
1EnglishFOILTo apply the FOIL algorithm to
2Middle Englishfoilenspoil a scent trail by crossing it
3Old Frenchfoulerto tread, to stamp, to full; tread on, trample
4Latinfullofuller
5Proto-Indo-Europeanbʰleh₃-bloom, flower
6Proto-Indo-Europeanbʰel-to sound; to speak, roar, bark; shiny, white; to...
7Proto-Indo-Europeanbʰōl-—

via English tin

StepLanguageWordMeaning
1EnglishtinA malleable, ductile, metallic element, resistant...
2Middle EnglishtinAlternative form of þin; tin
3Old Englishtintin
4Proto-West Germanic*tintin metal
5Proto-Germanictinątin
6Proto-Indo-Europeandinom—

Words derived from “tinfoil”

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