cloudy, be/getகறுkaṟu(karu)(6 intr)become dark, clouded over (as sky with clouds); darken (as face, with anger, etc.)
Usage:
மழை வருவதற்கு முன்னால் மேகம் கறுக்கும்maḻai varuvataṟku muṉṉāl mēkam kaṟukkum
maḻe varattukku munnaale meeham karukkum
Before it rains, the sky gets cloudy.