COM

[kom]

com-

  1. a prefix meaning “with,” “together,” “in association,” and (with intensive force) “completely,” occurring in loanwords from Latin (commit): used in the formation of compound words before b, p, m: combine; compare; commingle.
Also co-, col-, con-, cor-.

Origin of com-

< Latin, variant of preposition cum with

com.

Com.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for com

Contemporary Examples of com

Historical Examples of com


British Dictionary definitions for com

com

the internet domain name for
  1. a commercial company

COM

noun
    1. a process in which a computer output is converted direct to microfiche or film, esp 35 or 16 millimetre film
    2. (as modifier)a COM machine

Word Origin for COM

(C) omputer (O) utput on (M) icrofilm

Com.

abbreviation for
  1. Commander
  2. committee
  3. Commodore

com-

con-

prefix
  1. together; with; jointlycommingle

Word Origin for com-

from Latin com-; related to cum with. In compound words of Latin origin, com- becomes col- and cor- before l and r, co- before gn, h, and most vowels, and con- before consonants other than b, p, and m. Although its sense in compounds of Latin derivation is often obscured, it means: together, with, etc (combine, compile) ; similar (conform); extremely, completely (consecrate)
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

Word Origin and History for com

com-

word-forming element usually meaning "with, together," from Latin com, archaic form of classical Latin cum "together, together with, in combination," from PIE *kom- "beside, near, by, with" (cf. Old English ge-, German ge-). The prefix in Latin sometimes was used as an intensive.

Before vowels and aspirates, reduced to co-; before -g-, assimilated to cog- or con-; before -l-, assimilated to col-; before -r-, assimilated to cor-; before -c-, -d-, -j-, -n-, -q-, -s-, -t-, -v- assimilated to con-.

Online Etymology Dictionary, © 2010 Douglas Harper

com in Medicine

com-

pref.
  1. Together; with; joint; jointly:commensalism.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.