The Austronesian Comparative Dictionary

Loans: mark: sign, signal, mark

Borrowing, probably from old or modern language__Javanese, where it referred to a military ensign. Dempwolff (1938) reconstructed ‘Uraustronesisch’ *tanDa ‘sign, signal, mark’, showing some of his most extreme semantic permissiveness with the language__Sa'a form.

WMP
Tagalog tandáʔ sign; any mark, thing or motion used to mean, represent, or point out something
taláʔ list, entry; thing written or printed in a book
Toba Batak tanda sign; sign of recognition
Malay tanda sign; token; emblem
Ngaju Dayak tanda a sign, mark (from )
Old Javanese sa-tanḍa each company (banner) separately
tanḍa special sign on a banner belonging to each hero, ensign, standard, banner
Javanese tanḍa sign, mark, indication
Malagasy tandra a mole in the skin
CMP
Kambera tanda sign, signal, mark
OC
Sa'a ada-loŋa four plates of turtle shell on the shoulders of the hawksbill turtle