لَّكَ

لَّكَ 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 youلَّكَ=كَ+لَّ
for youyoufor/belongs to
Surah/Below are verses in the holy Quran containing the compoundلَّكَ
Verse
1  
1
93-4And verily the hereafter is better for you than the presentوَلَلْآخِرَةُ خَيْرٌ لَّكَ مِنَ الْأُوْلَى