Where does “ꦠꦸꦭꦺꦤ꧀” come from?

ꦠꦸꦭꦺꦤ꧀ (Javanese) comes from Old Javanese tulen.

Ancestry of “ꦠꦸꦭꦺꦤ꧀”, step by step

Step	Language	Word	Meaning
1	Old Javanese	tulen	—

ꦠꦸꦭꦺꦤ꧀ — Etymology, Origin & Word History | Etymology Explorer