Part 1.
gaunt
very thin especially from disease or hunger or cold
gawk
look with amazement
generate
bring into existence
genesis
a coming into being
gentility
elegance by virtue of fineness of manner and expression
gentry
the most powerful members of a society
Part 2.
gestate
develop in the mind; have the idea for
gibe
laugh at with contempt and derision
gird
prepare oneself for action or a confrontation
gist
the central meaning or theme of a speech or literary work
glib
having only superficial plausibility
glower
look angry or sullen as if to signal disapproval
Part 3.
gouge
swindle; obtain by coercion
granary
a storehouse for threshed grain or animal feed
grandiloquent
lofty in style
grant
allow to have
grapple
work hard to come to terms with or deal with something
gratis
costing nothing
Part 4.
gravity
the force of attraction between all masses in the universe
gripe
complain
grisly
shockingly repellent; inspiring horror
grove
a small growth of trees without underbrush
grovel
show submission or fear
grudging
petty or reluctant in giving or spending