Where does “katibayan” come from?

katibayan (Tagalog) comes from Tagalog tibay, from Proto-Philippine tibay.

katibayan (Tagalog): proof; evidence

Definitions

  1. proof; evidence

Ancestry of “katibayan”, step by step

katibayan traces back through two separate lines of ancestry.

via Tagalog tibay

StepLanguageWordMeaning
1Tagalogtibaymaterial or structural strength; vitality;...
2Proto-Philippinetibay—

via Tagalog ka- -an

StepLanguageWordMeaning
1Tagalogka- -anused to form abstract nouns
2Proto-Austronesian*ka- -an—
Every word from Proto-Philippine tibay →Every word from Tagalog tibay →
katibayan — Etymology, Origin & Word History | Etymology Explorer