لَكَ

لَكَ is a phrase (شِبْهُ الجُمْلَةِ) consisting of a particle of pulling down and a genitive noun

PhraseParticle / NounNoun Particle
شِبْهُ الجُمْلَةِجَارٌ وَمَجْرُوْرٌاسْمٌ مَجْرُوْرٌحَرْفُ جَرٍّ
PhraseCompoundGenitive NounParticle of pulling down
  
for youلَكَ=كَ+لَ
for youyoufor/belongs to
Surah/Below are verses in the holy Quran containing the compoundلَكَ
Verse
1
98-1Have We not opened up for you your breast?أَلَمْ نَشْرَحْ لَكَ صَدْرَكَ
98-4And have We not raised for you your remembrance?وَرَفَعْنَا لَكَ ذِكْرَكَ