Where does “unleaded” come from?

unleaded (English) comes from English leaded, from English lead, from Middle English leden, from Old English lēoden, from Old English -en, from Old Norse -inn, from Proto-Norse -īna-, from Proto-Germanic -īnaz — adjectival suffix.

unleaded (English): Without lead; Containing no more than 0.05 grams...

Definitions

  1. Without lead; Containing no more than 0.05 grams...

Ancestry of “unleaded”, step by step

StepLanguageWordMeaning
1EnglishleadedHeld in place by strips of lead; Containing or...
2EnglishleadA heavy, pliable, inelastic metal element, having...
3Middle Englishledento lead; to carry, take, bring; to put, place,...
4Old Englishlēodennational or popular language; national language;...
5Old English-enmæġþ + API → mæġden; cocc + API → cycen, cicen;...
6Old Norse-innUsed to create adjectives from nouns, meaning...
7Proto-Norse-īna-
8Proto-Germanic-īnaz-en
9Proto-Indo-European-iHnosCreates adjectives of materials
10Proto-Indo-European-no-adjectival suffix

Words derived from “unleaded

Every word from Proto-Indo-European -no-Every word from Proto-Germanic -īnazEvery word from Old English -en