In Tagalog, there is a particle called a linker or a ligature, with two forms: na and -ng /-ŋ/. The ligature's main function is to link modifiers (like adjectives and adverbs) and the words that they are modifying.
This ligature is found in other languages in the Austronesian language family. My question is, what other languages outside of Austronesian have such a particle with a similar function? I am mainly interested in how widespread it is, and if there are any theories as to its diachronic origin in these other languages.