Piya

The Piya (; "Increased [Er]ya") was a Chinese dictionary compiled by Song Dynasty scholar Lu Dian (陸佃/陆佃, 1042–1102). He wrote this Erya supplement along with his Erya Xinyi (爾雅新義 "New Exegesis of the Erya") commentary. Although the Piya preface written by his son Lu Zai (陸宰/陆宰) is dated 1125, the dictionary was written earlier; estimates around the Yuanfeng era (元豐, 1078–1085), and Joseph Needham says around 1096.

Lu Dian arranged the Piya into 8 semantically based chapters that closely correspond with the last Erya chapters 13–19. The only exceptions are Chapter 5 ("Explaining Horses") that is contained in Erya 19 ("Explaining Domestic Animals") and Chapter 8 ("Explaining Heaven") that anomalously corresponds with the first part of the Erya. {| class="wikitable" |- ! Chapter ! Chinese ! Pinyin ! Translation ! Erya Chapter |- | 1 || 釋魚 || Shiyu || Explaining Fishes || 16 |- | 2 || 釋獸 || Shishou || Explaining Beasts || 18 |- | 3 || 釋鳥 || Shiniao || Explaining Birds || 17 |- | 4 || 釋蟲 || Shichong || Explaining Insects || 15 |- | 5 || 釋馬 || Shima || Explaining Horses || (19) |- | 6 || 釋木 || Shimu || Explaining Trees || 14 |- | 7 || 釋草 || Shicao || Explaining Plants || 13 |- | 8 || 釋天 || Shitian || Explaining Heaven || 8 |}