I

ignis	fire	ign-	ignis	igneous, ignite, ignition
imber	heavy rain	imbr-	imber, imbris	ignimbrite, imbrex, imbricate, imbrication, imbriferous
imāgō	copy	imagin-	imāgō, imāginis	image, imagine
in-	not, un- (negation)	in- (2), il-, im-, ir-	in-	illicit, impossible, inimical, insane, irrational
inanitio	empty, vain	inan-	inanitio “emptiness” and inanitas “worthlessness”, from inanire “to empty”, from inanis “empty, void, worthless”	inane, inanition, inanity
infra	below, under	infra-	infra	infrared, infrastructure
insula	island	insul-	insula	insular, insulation
inter	among, between	inter-	inter (preposition)	intercollegiate, intermission, intersection
intra	inside , within	intra-	intra	intramural, intravenous
in	in, on	in- (1), il-, im-	in	illuminate, import, incur, intend, invite
irasci	be angry	irasc-, irat-	irasci “grow angry”, from ira “anger”	irascible, irate, ire
iris	rainbow	irid-	iris	iridescent
iterum	again	iter-	iterum, iterare	iteration
iter	journey	itiner-	iter, itineris	itinerary
teg	whole, complete	integr-	in-, teg-	integrate, integration, integer, integrational, disintegrate, integral, unintegrated