'synovial' originates from Modern Latin, specifically the word 'synovia,' where 'syn-' meant 'together' and 'ovum' meant 'egg,' referring to the egg-like consistency of the fluid.

'synovia' transformed into the English word 'synovial' to describe the fluid and membrane associated with certain joints.

Initially, it referred to the fluid's egg-like consistency, but over time it evolved to describe the membrane and fluid in joint anatomy.