To lose energy or enthusiasm
ऊर्जा या उत्साह खोना
English Usage: I am tired of working late nights.
Hindi Usage: मैं देर रात काम करने से थक गया हूँ।
thak gaya, thak gaya hai, thak gya, thak gaya tha, thak gaye, thak gayaa, thak gaye hain, thak gaye the, thak gayi