| var. of com- before a consonant (except b, h, l, p, r) and, by assimilation, before n: convene; condone; connection. |

| com- or col- or con- or cor- pref. Together; with; joint; jointly: commingle. [Middle English, from Latin; see kom in Indo-European roots.] |
| con- pref. Variant of com-. |
com- or col- or con-
pref.
Together; with; joint; jointly: commensalism.
con- pref.
Variant of com-.