COM-


Meaning of COM- in English

[com-] or col- or con- prefix [ME, fr. OF, fr. L, with, together, thoroughly--more at co-]: with: together: jointly--usu. com- before b, p, or m "commingle", col- before l "collinear", and con- before other sounds "concentrate"

Merriam-Webster English vocab.      Английский словарь Merriam Webster.