Dott

According to the Old English Dictionary:

es;

dott

m. A DOT, small spot, speck; punctum :-- Geopenige mon ðone dott, and binde ðone clíðan to ðan swyle let the speck [at the head of a boil] be opened, and the poultice be bound to the swelling, Lchdm. iii. 40, 14. dott