I is for Ichneumon Wasp

Family Ichneumonidae
Ichneumon wasps come in all sizes and a variety of colours. The long “tail” is an ovipositor.


il— means before


ill— means not

illegible, illusion 

im— means before

impulse, improve

in— also means not

inability, inconsistent

in— or it could mean into

income, influx, ingrain, invite

infra— below

infrared, infrastructure 

inter— among, between

interchange, interfere, interlude

irr— means not

irregular, irresistible

iso— same

isomer, isosceles


  1. Look at the list of examples of prefixes. Can you add a suffix onto any of them to create different words?
  2. Can you think of suffixes that start with the letter I?

Special reading assignment

  1. His interest is in iconography.
  2. Going into the interior, his instrument indicated that a new installation is important.