Where does “portlight” come from?

portlight (English) comes from English Port, from English portfolio, from Italian portafoglio, from Italian foglio, from Latin folium, from Proto-Italic *foljom, from Proto-Indo-European bʰolh₃yom, from Proto-Indo-European bʰleh₃-.

portlight (English): A window on a porthole

Definitions

  1. A window on a porthole

Ancestry of “portlight”, step by step

portlight traces back through two separate lines of ancestry.

via English Port

StepLanguageWordMeaning
1EnglishPortUniversity of Portsmouth, used especially following post-nominal letters indicating status as a graduate
2EnglishportfolioA case for carrying papers, drawings,...
3Italianportafogliowallet, billfold; portfolio
4Italianfogliosheet
5Latinfoliuma leaf; a petal; a sheet or leaf of paper
6Proto-Italic*foljom
7Proto-Indo-Europeanbʰolh₃yomleaf
8Proto-Indo-Europeanbʰleh₃-bloom, flower
9Proto-Indo-Europeanbʰel-to sound; to speak, roar, bark; shiny, white; to...
10Proto-Indo-Europeanbʰōl-

via English Light

StepLanguageWordMeaning
1EnglishLightA place name
2Middle EnglishlightThe radiation which allows for vision by...
3Old Englishlēohtluminous, bright, light, clear, resplendent,...
4Proto-West Germanicleuhtlight, bright; light
5Proto-Germanicleuhtąlight
6Proto-Indo-Europeanlewktom
7Proto-Indo-Europeanlewk-bright; to shine; to see
Every word from Proto-Indo-European bʰōl-