Where does “namuro” come from?

namuro (Tagalog) comes from Tagalog puro, from Spanish puro, from Old Spanish puro, from Latin pūrus, from Proto-Indo-European pewH- — to be clean, pure.

Ancestry of “namuro”, step by step

Step	Language	Word	Meaning
1	Tagalog	puro	pure; undiluted
2	Spanish	puro	pure, clear; alone, mere, just, nothing less...
3	Old Spanish	puro	—
4	Latin	pūrus	clear, limpid
5	Proto-Indo-European	pewH-	to be clean, pure

Every word from Proto-Indo-European pewH- →Every word from Latin pūrus →Every word from Old Spanish puro →