goan

goân 黿: (R.), a large turtle or tortoise spoken of in the classics.
goân-gô 黿鼇 (R.), two such animals.  goân-ngô ·  黿鼇 (R.) , id.
sù-su, tha̍k-thàu-thàu: bōe-hiáu-siá goân-gô ku-pih-tsàu 四書讀透透, 未曉寫黿鼇龜鼈竈 , having read the four books all through, but unable to write these five characters (very like and complicated).