petrifyகல்லாகுkallāku(kallaahu)(3b intr)(of heart) turn into a stone; (of body) become toughened and hard
Usage:
அவனுடைய இதயம் கல்லாகிப்போனது போலத் தெரிகிறதுavaṉuṭaiya itayam kallākippōṉatu pōlat terikiṟatu
avanooḍa idayam kallaahipoonadu maadiri teriyudu
His heart seems to have petrified and turned to stone.