Gratia, favour; gratiæ, thanks; gratitude, ingratiate, gratis.
Gravis, heavy; gravitate, gravity, (grief).
Grex (greg-is), a flock; gregarious, egregious.
Habeo, I have; habit, able, exhibit, prohibition.
Hæreo (hæs-um), I stick; adhere, cohesion.
Homo, a man; homicide, human.
Hospes (hospit-is), a guest; hospital, hostel, hotel.
Hostis, an enemy; host, hostile.
Humus, the ground; posthumous, exhume.
Ignis, fire; ignite, igneous.