Where does “जमाई” come from?
जमाई (Hindi) comes from Sauraseni Prakrit ???????, from Sanskrit जामातृ, from Proto-Indo-Aryan ȷ́ā́mātā, from Proto-Indo-Iranian ȷ́ā́mātā, from Proto-Indo-European *ȷ́ā́mātā, from Proto-Indo-European ǵem- — to marry.
जमाई (Hindi): son-in-law
Ancestry of “जमाई”, step by step