Where does “idiot light” come from?

idiot light (English) comes from English IDiot, from English ID, from Hindi ईद, from Persian عید, from Arabic عِيد, from Arabic محمد, from Arabic حَمَّدَ, from Arabic م.

idiot light (English): Any warning light or indicator on the dashboard...

Definitions

  1. Any warning light or indicator on the dashboard...

Ancestry of “idiot light”, step by step

idiot light traces back through two separate lines of ancestry.

via English IDiot

StepLanguageWordMeaning
1EnglishIDiotA proponent of intelligent design
2EnglishIDInitialism of identification or identity...
3HindiईदEid
4Persianعیدfeast, feast day; celebration; holiday
5Arabicعِيدholiday, carnival; feast, festival; holiday,...
6Arabicمحمدcommendable, laudable, praised, praiseworthy;...
7Arabicحَمَّدَto praise, commend, laud; to praise, commend,...
8Arabicمa prefix used to create nouns of place; a prefix...
9Proto-Semiticšamaʿ-

via English Light

StepLanguageWordMeaning
1EnglishLightA place name
2Middle EnglishlightThe radiation which allows for vision by...
3Old Englishlēohtluminous, bright, light, clear, resplendent,...
4Proto-West Germanicleuhtlight, bright; light
5Proto-Germanicleuhtąlight
6Proto-Indo-Europeanlewktom
7Proto-Indo-Europeanlewk-bright; to shine; to see
Every word from Proto-Semitic šamaʿ-Every word from Arabic مEvery word from Arabic حَمَّدَ