Where does “lättbetong” come from?

lättbetong (Swedish) comes from Swedish lätt, from Old Swedish lætter, from Old Norse léttr, from Proto-Germanic linhtaz, from Proto-Indo-European h₁lengʷʰ- — light.

lättbetong (Swedish): lightweight concrete, autoclaved aerated concrete, AAC

Definitions

  1. lightweight concrete, autoclaved aerated concrete, AAC

Ancestry of “lättbetong”, step by step

lättbetong traces back through two separate lines of ancestry.

via Swedish lätt

StepLanguageWordMeaning
1Swedishlättlight; of low weight; light, lean, low-fat;...
2Old Swedishlætterlight; easy; easily disrupted
3Old Norseléttrlight; easy
4Proto-Germaniclinhtazlight
5Proto-Indo-Europeanh₁lengʷʰ-light

via Swedish betong

StepLanguageWordMeaning
1Swedishbetongconcrete
2Frenchbétonconcrete; to drop
3Latinbitūmenmineral pitch, bitumen
4Latin-menforms neuter nouns of the third declension
5Proto-Italic*-mn̥
Every word from Proto-Indo-European h₁lengʷʰ-Every word from Proto-Germanic linhtazEvery word from Old Norse léttr