تَابَ: نَدِمَ to repent, be or become penitent
تَابَ عَنْ مَعْصِيَةٍ to repent, turn from sin; to renounce, forsake, forswear
تَابَ إلَى الله to turn to God in repentance
تَابَ اللّهُ عَلَيْهِ: غَفَرَ لَهُ to forgive, pardon