Noun
punctus
(palaeography) The basic dot (‧) used to end a sentence in medieval punctuation (ancestral to the full stop/period).
In the late 11th/early 12th century the punctus versus disappeared and was taken over by the simple punctus (now with two distinct values). Source: Internet
Most common were the punctus, a comma-shaped mark, and a 7-shaped mark (comma positura), often used in combination. Source: Internet
The original positurae were the punctus, punctus elevatus, citation punctus versus, and punctus interrogativus, but a fifth symbol, the punctus flexus, was added in the 10th century to indicate a pause of a value between the punctus and punctus elevatus. Source: Internet
Truss describes the punctus interrogativus of the late 8th century as "a lightning flash, striking from right to left". Source: Internet