loosen (up)லூஸாகுlūsāku(luusaahu)(3b intr)(of a nut, a screw, a knot, a joint, or anything that ought to be tight or firmly fixed) become loose or looser
Usage:
இந்த நட் லூஸாகிவிட்டதுinta naṭ lūsākiviṭṭatu
inda naḍ luusaayiḍicci
This nut got loosened.