zygapophysis: Greek zygon = yoke, apo = from, physis = growth; the articular process of a vertebra. The downward "growth" of the vertebra above articulates with the upward "growth" of the vertebra below, forming a zygapophyseal joint.
zygoma: Greek zygon = yoke; hence, the bone joining the maxillary, frontal, temporal and sphenoid bones.
zygomatic: adjective, Greek zygon = yoke; hence, pertaining to the bone joining the maxillary, frontal, temporal and sphenoid bones.
zygote: Greek zygon = yoke; hence the fusion of the male and female gametes.
