Where does “tiadalah” come from?

tiadalah (Indonesian) comes from Malay tiada, from Proto-Malayic *ti.

Ancestry of “tiadalah”, step by step

tiadalah traces back through two separate lines of ancestry.

via Malay tiada

StepLanguageWordMeaning
1MalaytiadaAlternative form of tidak ada
2Proto-Malayic*ti—

via Indonesian lah

StepLanguageWordMeaning
1Indonesianlah—
Every word from Proto-Malayic *ti →Every word from Malay tiada →