Where does “tiga belas” come from?

tiga belas (Indonesian) comes from Malay tiga belas, from Malay tigă, from Old Malay *tiga, from Prakrit 𑀢𑀺𑀕, from Sanskrit त्रिक — triple.

tiga belas (Indonesian): thirteen

Definitions

Step	Language	Word	Meaning
1	Malay	tiga belas	thirteen
2	Malay	tigă	Obsolete spelling of tiga
3	Old Malay	*tiga	—
4	Prakrit	𑀢𑀺𑀕	—
5	Sanskrit	त्रिक	triple

tiga belas — Etymology, Origin & Word History | Etymology Explorer