Where does “lapis-na-bato” come from?

lapis-na-bato (Tagalog) comes from Tagalog lapis, from Spanish lápiz, from Italian lapis, from Latin lapis, from Proto-Italic *lapets — stone.

Ancestry of “lapis-na-bato”, step by step

lapis-na-bato traces back through 3 separate lines of ancestry.

via Tagalog lapis

StepLanguageWordMeaning
1Tagaloglapispencil
2Spanishlápizpencil
3Italianlapispencil; sanguine
4Latinlapisa stone; a milestone; a boundary stone
5Proto-Italic*lapetsstone

via Tagalog bato

StepLanguageWordMeaning
1Tagalogbatostone; kidney; gallstone
2Proto-Philippine*batustone substance; small piece of stone
3Proto-Malayo-Polynesianbatustone
4Proto-Austronesian*batuxrock; stone

via Tagalog na

StepLanguageWordMeaning
1Tagalognaalready; now; now; already; connects adjectives...
2Proto-Austronesian*na
Every word from Proto-Italic *lapets