The term “yavanapriya” is related to Pepper.

• The most important feature of the Sangam economy was flourishing trade
  with the Roman world.
• The best account of Indo-Roman trade is given in the book called the Periplus of the Erythrean Sea, which was written in the first century CE by an anonymous author.
• Major items of export to the Romans were the Indian products such as spices (included yavanapriya or pepper), perfumes, jewels, ivory and fine textiles (muslin especially), several precious and semi-precious stones like diamond, carnelian, turquoise, agate, sapphire, and so on, besides pearls, indigo, sandalwood, iron and steel cutlery.