Where does “حبس مؤبد” come from?

حبس مؤبد (Arabic) comes from Persian موبد, from Middle Persian mgwpt', from Proto-Iranian magupati-.

Ancestry of “حبس مؤبد”, step by step

حبس مؤبد traces back through two separate lines of ancestry.

via Persian موبد

StepLanguageWordMeaning
1Persianموبدmobad, a Zoroastrian priest
2Middle Persianmgwpt'—
3Proto-Iranianmagupati-—

via Arabic حَبْس

StepLanguageWordMeaning
1Arabicحَبْسconfinement
Every word from Proto-Iranian magupati- →Every word from Middle Persian mgwpt' →Every word from Persian موبد →