Definition of pythias:
(N) :
Pythias, also known as Pythias the Elder, she was the adoptive daughter of Hermias of Atarneus, as well as Aristotle's first wife.
(N) :
a 1st-century female Roman slave (possibly of Greek origin) in the household of Octavia, the first wife of the Emperor Nero, who divorced Octavia in 62 AD to marry Poppaea Sabina.
(N) :
a Greek biologist and embryologist, and the first wife of Aristotle.