Where does “rattlebrained” come from?

rattlebrained (English) comes from English rattle, from Arabic رَطْل, from Classical Syriac ܪܝܛܠܐ, from Classical Syriac ܠܝܛܪܐ, from French litre, from Medieval Latin litra, from Ancient Greek λίτρα, from Proto-Italic *līðrā — ingot.

rattlebrained (English): Foolish

Definitions

  1. Foolish

Ancestry of “rattlebrained”, step by step

rattlebrained traces back through two separate lines of ancestry.

via English rattle

StepLanguageWordMeaning
1Englishrattlea sound made by loose objects shaking or...
2Arabicرَطْل
3Classical Syriacܪܝܛܠܐ
4Classical Syriacܠܝܛܪܐlibra, pound
5Frenchlitrelitre
6Medieval Latinlitra
7Ancient Greekλίτραlitra, a Sicilian silver coin; libra, a unit of...
8Proto-Italic*līðrāingot

via English brained

StepLanguageWordMeaning
1EnglishbrainedHaving a particular kind or number of brain;...
2EnglishbrainThe control center of the central nervous system...
3Middle EnglishbraynThe brain or cerebrum; the organ of thought;...
4Old Englishbræġnbrain
5Proto-West Germanic*bragnbrain
6Proto-Germanicbragnąbrain
7Proto-Indo-Europeanmregʰnomskull, brain
8Proto-Indo-Europeanmen-to think, mind; spiritual activity; to stay,...
Every word from Proto-Italic *līðrā