Where does “kaasiduhan” come from?

kaasiduhan (Tagalog) comes from Tagalog asido, from Spanish ácido, from Latin acidus, from Latin aceō, from Proto-Italic akēō, from Proto-Indo-European h₂eḱ-éh₁-ye-ti, from Proto-Indo-European h₂eḱ- — sharp.

kaasiduhan (Tagalog): acidity

Definitions

acidity

Ancestry of “kaasiduhan”, step by step

kaasiduhan traces back through two separate lines of ancestry.

via Tagalog asido

Step	Language	Word	Meaning
1	Tagalog	asido	acid
2	Spanish	ácido	sharp, tart; acidic; harsh
3	Latin	acidus	sour, tart, acid, bitter; harsh, grating, rough,...
4	Latin	aceō	to be sour
5	Proto-Italic	akēō	be sharp-tasting, be sour
6	Proto-Indo-European	h₂eḱ-éh₁-ye-ti	—
7	Proto-Indo-European	h₂eḱ-	sharp

via Tagalog ka- -an

Step	Language	Word	Meaning
1	Tagalog	ka- -an	used to form abstract nouns
2	Proto-Austronesian	*ka- -an	—

Every word from Proto-Indo-European h₂eḱ- →Every word from Proto-Indo-European h₂eḱ-éh₁-ye-ti →Every word from Proto-Italic akēō →