Where does “तबक़ा” come from?

तबक़ा (Hindi) comes from Persian طبقه, from Arabic طَبَقَة, from Middle Persian tʾp̄k', from Proto-Iranian tāpaka-, from Proto-Iranian tap-, from Proto-Indo-European tep- — to be warm, be hot.

तबक़ा (Hindi): class

Definitions

class

Ancestry of “तबक़ा”, step by step

Step	Language	Word	Meaning
1	Persian	طبقه	floor, story/storey; class; group
2	Arabic	طَبَقَة	—
3	Middle Persian	tʾp̄k'	frying pan
4	Proto-Iranian	tāpaka-	heater {{non-gloss definition\|or}} baking place...
5	Proto-Iranian	tap-	to warm up, heat; flat
6	Proto-Indo-European	tep-	to be warm, be hot

Every word from Proto-Indo-European tep- →Every word from Proto-Iranian tap- →Every word from Proto-Iranian tāpaka- →