Where does “block heater” come from?

block heater (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.

block heater (English): An electric heater that heats the engine of a car to ease starting in cold weather

Definitions

  1. An electric heater that heats the engine of a car to ease starting in cold weather

Ancestry of “block heater”, step by step

block heater 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 heater

StepLanguageWordMeaning
1EnglishheaterA device that produces and radiates heat,...
2English-erA person or thing that does an action indicated...
3Middle English-eragentive suffix; agent noun suffix
4Old French-erAlternative form of -ier, verbal suffix;...
5Latin-ārefirst conjugation
6Proto-Italic-āōForms primarily denominative verbs
7Proto-Indo-European-eh₂yétiCreates iterative/ frequentative/ intensive...
8Proto-Indo-European-yétiCreates intransitive, often deponent,...
9Proto-Indo-Europeanyé-
10Chichewaiyehe, she
Every word from Proto-Indo-European bhelg'-