ges·tate 
(jĕstāt′)
(jĕstāt′)v. ges·tat·ed, ges·tat·ing, ges·tates
v.tr.
1. To carry within the uterus from conception to delivery.
2. To conceive and develop in the mind.
v.intr.
1. To gestate offspring.
2. To develop gradually.
[Back-formation from GESTATION.]