The Collaborative International Dictionary of English v.0.48:
Pothook \Pot"hook`\, n. 1. An S-shaped hook on which pots and kettles are hung over an open fire. [1913 Webster] 2. A written character curved like a pothook; (pl.) a scrawled writing. "I long to be spelling her Arabic scrawls and pothooks." --Dryden. [1913 Webster]WordNet (r) 3.0 (2006):
pothook n 1: an S-shaped hook to suspend a pot over a fire