Where does “सुस्त-दिमाग़” come from?

सुस्त-दिमाग़ (Hindi) comes from Hindi सुस्त, from Persian سست, from Middle Persian swst' — slack, lazy.

सुस्त-दिमाग़ (Hindi): slow, dull-witted

Definitions

  1. slow, dull-witted

Ancestry of “सुस्त-दिमाग़”, step by step

सुस्त-दिमाग़ traces back through two separate lines of ancestry.

via Hindi सुस्त

StepLanguageWordMeaning
1Hindiसुस्तslow; lazy, leisurely; quiet, lethargic
2Persianسستfeeble, weak; soft; lazy, idle
3Middle Persianswst'slack, lazy

via Hindi दिमाग़

StepLanguageWordMeaning
1Hindiदिमाग़brain, cerebrum; conceit, pride
2Classical Persianدماغbrain, conceit
Every word from Middle Persian swst'Every word from Persian سستEvery word from Hindi सुस्त