Samudaya sacca

Samudaya sacca is the second of the four noble truths in Buddhism. It is about the origins of dukkha (suffering).
Etymology.
"Samudaya" has many meanings, but it usually means "origin" or "source." "Sacca" means "truth" or "reality." So because of this, "Samudaya sacca" means "truth of the origin of suffering." 
Within the four noble truths.
According to the Four Noble Truths, the origin ("Samudaya") of suffering ("sacca") is from cravings taught by ignorance. The craving is shown in three ways: