Where does “দড়ি” come from?

দড়ি (Bengali) comes from Sanskrit दवर, from Sanskrit देवर, from Sanskrit देवृ, from Proto-Indo-Iranian daHiwā́, from Proto-Indo-European dayh₂wḗr — brother-in-law, husband’s brother.

দড়ি (Bengali): string, rope, cord

Definitions

string, rope, cord

Ancestry of “দড়ি”, step by step

Step	Language	Word	Meaning
1	Sanskrit	दवर	string
2	Sanskrit	देवर	woman's brother-in-law, husband's brother;...
3	Sanskrit	देवृ	woman's brother-in-law, husband's brother;...
4	Proto-Indo-Iranian	daHiwā́	husband's brother
5	Proto-Indo-European	dayh₂wḗr	brother-in-law, husband’s brother

Every word from Proto-Indo-European dayh₂wḗr →Every word from Proto-Indo-Iranian daHiwā́ →Every word from Sanskrit देवृ →