unfastened, be(come) கழன்று போ kaḻaṉṟu pō (kaḻaṇḍu poo) (3b intr) become loosened or separated; become unclasped or disconnected
Usage:
மாலை கழன்று போனதை நான் உணரவில்லை mālai kaḻaṉṟu pōṉatai nāṉ uṇaravillai maale kaḻaṇḍu poonade naan oṇaralle I didn't realize that the necklace had become unfastened.