[chmorshuutz]

Originally Posted by A. G. Maisey

Actually, the word "tombak" came into Malay & also probably Kawi, thence Old Javanese, from the Sanscrit "tamra" = "copper".

There are many ways in which "tamra" can be understood in Sanscrit, & the idea of "copper" does not only apply to the metal.

For example, in the Puranas "tamra" is a reference to the lingga of Aditya (present day usage, arc. "Adityas"), which is synonymous with Surya, the Sun.

The spelling "tombak" is Malay & BI, the Javanese spelling is "tumbak".

The word "tembaga" is clearly from the same Sanscrit root word.

Separate derivations from the same root, but probably not from the same understanding of that root.

In the Early Classical Period of Jawa, bronze weapons were probably used in blood sacrifice, as they were in India, notably in the Horse Sacrifice. I have a relatively recent Javanese brass keris, & I have seen & handled archaic bronze Javanese blades.

Interesting, Tagalog also has this term "tumbaga" in old dictionaries, referring to copper, can also be used for mix of gold and copper.