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amphi-

American  
  1. a prefix occurring in loanwords from Greek (amphibious ); on this model, used with the meaning “two,” “both,” “on both sides,” in the formation of compound words.

    amphiaster.


amphi- British  

prefix

  1. on both sides; at both ends; of both kinds

    amphipod

    amphitrichous

    amphibious

  2. around

    amphibole

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of amphi-

< Greek, combining form of amphí on both sides; cognate with Latin amb ( i )- ambi-, Albanian mbë; akin to Old English ymb ( e )- around