from The American Heritage® Dictionary of the English Language, 4th Edition
- Around; about; enclosing: perimysium.
- Near: perinatal.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- around or surrounding:
from the GNU version of the Collaborative International Dictionary of English
- A prefix used to signify around, by, near, over, beyond, or to give an intensive sense
Greek, from peri, around, near; see per1 in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek περί (peri, "about, around"). (Wiktionary)