Word Unit:
				irido-, irid-, iri-, iris- +				(Greek: iris [relating to the eye]; the rainbow; colored circle, colored portion of the eye [originally, "something bent or curved"])
				
			
 
					
				Word Unit:
				iron-, ironi-				(Greek > Latin > Old French > French: pretended ignorance; saying the opposite of what a person really means)
				
			
 
					
				Word Unit:
				irrita-				(Latin: to anger; to excite, to stimulate, to stir up, to provoke)
				
			
 
					
					
				Word Unit:
				ischo-, isch- +				(Greek: check, stop, keep back, suppress; suppression)
				
			
 
					
				Word Unit:
				-ise				(Latin: a suffix; to act in a certain way; to treat in a certain way; to make into; to treat with; to do; to make; to cause)
				
			
 
					
				Word Unit:
				-ish				(Old English: a suffix meaning, characteristic of, like, tending to; of or relating to, from; somewhat, approximately; or a verb ending)
				
			
 
					
				Word Unit:
				-ism, -ismus				(Greek, 
ismos; Latin, 
ismus: a suffix: belief in, practice of, condition of, process, characteristic behavior or manner, abnormal state, distinctive feature or trait)
				
			
 
					
				Word Unit:
				iso-, is-				(Greek: equal; by extension: same, similar, alike; normally used as a prefix)
				
			
 
					
					
				Word Unit:
				-ist				(Greek > Latin: a suffix;  one who believes in; one who is engaged in; someone who does something)
				
			
 
					
				Word Unit:
				isthm-, isthmo- +				(Greek: narrow passage or ridge; narrow passage or strip [especially of bodily tissue] connecting two larger entities)
				
			
 
					
				Word Unit:
				-ite				(Greek: a suffix;  one connected with, inhabitant of; also used to show chemicals, minerals, etc.)
				
			
 
					
				Word Unit:
				itera-, iter-				(Latin: again; to do over a second time, to repeat, to say again)
				
			
 
					
					
				Word Unit:
				itiner-, it-, -it				(Latin: to go, to walk away; to travel, to journey, a journey)
				
			
 
					
				Word Unit:
				-itious				(Latin: a suffix;  tending to, characterized by)
				
			
 
					
				Word Unit:
				-itis				(Greek: a suffix;  inflammation, burning sensation; by extension, disease associated with inflammation)