) The digamma lingers as a medial (more rarely as initial) in many words, such as ϝαχύς, Δαμοϝάνασσα, Ποτειδαϝων, and Διδαίϝων; its written form is 15

Ϝ or 15

ϝ The use of

for the rough breathing is invariable.[[2128]]

One or two vases have been recognised as of Sicyonian fabric by the use in inscriptions of the unique 15