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peri-
(PER-ee)around
Greek for around. A perimeter is the distance around a shape; a periscope sees around an obstacle.
prefixGreek
Place & directionExample words
perimeter
the distance around a shape
periscope
a tool for seeing around or over an obstacle
period
a stretch of time that goes around and comes back (a recurring span)
Common Core alignment
Grades served: 6, 7
- L.6.4bUse common, grade-appropriate Greek or Latin affixes and roots as clues to the meaning of a word (e.g., audience, auditory, audible).
- L.7.4bUse common, grade-appropriate Greek or Latin affixes and roots as clues to the meaning of a word (e.g., belligerent, bellicose, rebel).
Related roots
Place & direction. Roots that locate things: under, over, between, before, after.
Browse all place & direction roots →L.6.4bL.7.4b