The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
Appendix I
Indo-European Roots
ENTRY:
kom
DEFINITION:
Beside, near, by, with. Derivatives include enough, handiwork, and country. 1.enough, gemot, handiwork, witanagemot, yclept, yean, from Old English ge-, with, also participial, collective, and intensive prefix, from Germanic *ga-, together, with (collective and intensive prefix and marker of the past participle). 2.cum1; cooncan, from Latin cum,co-, with. 3. co-, com-, from Archaic Latin com, with (collective and intensive prefix). 4. British Celtic *kom-, collective prefix, in compound *kombrogos (see merg-). 5. Suffixed form *kom-tr-.con1, contra-, contrary, counter1, counter-, country; encounter, from Latin contr, against, opposite. 6. Suffixed form *kom-yo-. coeno-; cenobite, epicene, Koine, from Greek koinos, common, shared. 7. Reduced form *ko- in compounds (see gher-1, mei-1, smei-). (Pokorny kom 612.)