Grade Root Definition Examples Origin Additional Information

Prefix-Suffix-Root List - 6th Grade (Generally, prefixes and suffixes change the meanings of roots, but it is usually the suffix that denotes the part of speech.) 7. ir - used before roots beginning with. r. irregular. in- (il-, im-, ir-) in/ on/ toward infer, illustrate, improve, irrigate Same prefix usage is applied as above. bio- ................
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