Where does “लड़ाकू” come from?

लड़ाकू (Hindi) comes from Hindi लड़ना, from Prakrit 𑀮𑀮𑀇.

लड़ाकू (Hindi): fighter; used in war

Definitions

Step	Language	Word	Meaning
1	Hindi	लड़ना	to fight; to argue
2	Prakrit	𑀮𑀮𑀇	—

लड़ाकू — Etymology, Origin & Word History | Etymology Explorer