இளகு -
III. v. i. become soft or pliable, தணி; 2. grow moist ஈரி; 3. grow tender, mild, மிருதுவாகு; 4. be compassionate, நெகிழு; 5. grow weary, get tired, களை; 6. lessen in severity, தணி (as wind, rain, fever etc).
இளகாதவன், inexorable, hard-hearted, unfeeling man. இளகின நெஞ்சு, -மனசு, a feeling, kind heart.