Where does “pyrolite” come from?

pyrolite (English) comes from English lite, from Middle English liten, from Old Norse hlíta, from Proto-Indo-European ḱley-, from Proto-Indo-European ḱel- — to cover; to incline.

pyrolite (English): A theoretical rock considered to be the best...

Definitions

  1. A theoretical rock considered to be the best...

Ancestry of “pyrolite”, step by step

pyrolite traces back through two separate lines of ancestry.

via English lite

StepLanguageWordMeaning
1EnglishliteLight in composition, notably low in fat,...
2Middle Englishlitento dye
3Old Norsehlítato rely on, trust, abide by; to rely on, trust
4Proto-Indo-Europeanḱley-to shelter, cover; to lean, slope, incline
5Proto-Indo-Europeanḱel-to cover; to incline

via English pyro

StepLanguageWordMeaning
1Englishpyroa pyromaniac; pyrocellulose; pyrotechnician
2Ancient Greekπῦρa fire; lightning; a fever
3Proto-Indo-Europeanpéh₂wr̥bonfire; spelt
Every word from Proto-Indo-European ḱel-