Webster's Revised Unabridged Dictionary · 1913

Gestation

Gestation , noun

[Latin gestatio a bearing, carrying, from gestare to bear, carry, intens. from gerere, gestum, to bear: compare French gestation. See Gest deed, Jest.]

1.
The act of wearing (clothes or ornaments). [Obsolete]
2.
The act of carrying young in the womb from conception to delivery; pregnancy.
3.
Exercise in which one is borne or carried, as on horseback, or in a carriage, without the exertion of his own powers; passive exercise. — Dunglison