gafol-fisc, m.n: fish paid as toll or tribute. (“gav-ol-feesh”)
Fishing lamprey. Illustration from a 15th-century edition of Tacuinum Sanitatis, a medieval handbook mainly on health, based on the Taqwīm as‑siḥḥah (Maintenance of Health), an 11th-century Arab medical treatise by Ibn Butlan of Baghdad. [commons.wikimedia.org]
