Sessilly \s(es)-silly, sess(il)-ly\ as a girl's name is a variant of Cecilia (Latin, Old Welsh), and the meaning of Sessilly is "blind; sixth".

The baby name Sessilly sounds like Sessily, Sessile and Sessaley. Other similar baby names are Sesseelya, Sesilia, Cescily, Sessy, Sevilla and Sicilly.