Where does “casse-tête” come from?

casse-tête (French) comes from French tête, from Middle French teste, from Old French teste, from Latin testis, from Latin terstis, from Latin trīstis, from Proto-Indo-European tristh₂s, from Proto-Indo-European steh₂- — to stand.

casse-tête (French): brainteaser, puzzle; headache, problem; warclub

Definitions

  1. brainteaser, puzzle; headache, problem; warclub

Ancestry of “casse-tête”, step by step

casse-tête traces back through two separate lines of ancestry.

via French tête

StepLanguageWordMeaning
1Frenchtêtehead; header; a bright spark, a quick study
2Middle Frenchtestehead
3Old Frenchtestehead
4Latintestiswitness; one who testifies or attests; testicle
5Latinterstis
6Latintrīstissad, unhappy, melancholy, morose
7Proto-Indo-Europeantristh₂sa third party standing, after the two parties to...
8Proto-Indo-Europeansteh₂-to stand

via French casser

StepLanguageWordMeaning
1Frenchcasserto break; to break up
2Old Frenchquasserto break; to annul; to quash
3Latinquassōto shake repeatedly, to quake
4Latin-tōForms here
5Latin-tusForms the past participle of verbs; Forms...
6Proto-Italic-tus
7Proto-Indo-European-tusDerives action nouns from verb roots

Words derived from “casse-tête

Every word from Proto-Indo-European steh₂-Every word from Proto-Indo-European tristh₂sEvery word from Latin trīstis
casse-tête — Etymology, Origin & Word History | Etymology Explorer