Where does “cinderblock” come from?

cinderblock (English) comes from English block, from French Bloc, from Middle French bloc, from Old French bloc, from Dutch blok, from Middle Dutch blok, from Old Dutch blok, from Proto-West Germanic blokk — thick plank, beam, pile, prop.

cinderblock (English): Made of cinder blocks; Alternative form of cinder...

Definitions

  1. Made of cinder blocks; Alternative form of cinder...

Ancestry of “cinderblock”, step by step

cinderblock traces back through two separate lines of ancestry.

via English block

StepLanguageWordMeaning
1EnglishblockA substantial, often approximately cuboid, piece...
2FrenchBlocBloc — Bloc Québécois (Bloc québécois)
3Middle Frenchbloca considerable piece of something heavy, block
4Old Frenchbloclog, block
5Dutchbloka block; a street block; a political bloc
6Middle Dutchbloktreetrunk
7Old Dutchbloklog
8Proto-West Germanicblokkblock, log
9Proto-Germanicblukkąblock, log
10Proto-Indo-Europeanbhulg'-
11Proto-Indo-Europeanbhelg'-thick plank, beam, pile, prop

via English cinder

StepLanguageWordMeaning
1EnglishcinderPartially or mostly burnt material that results...
2Middle Englishcinder
3Old Englishsindercinder, ashes; dross, scoria, slag
4Proto-Germanic*sindr
5Proto-Germanicsindrądross, cinder, slag
6Proto-Indo-Europeansendʰro-coagulating fluid, liquid slag, scale, cinder;...
Every word from Proto-Indo-European bhelg'-