com-

Forms

• com-
• con- — Used before many consonants in Latin.
• col- — Used before l in Latin.
• cor- — Used before r in Latin.
• co- — Shortened especially before vowels.

Origin

Reconstructed Proto-Indo-European *kom, ‘with; beside.’

Note

In some formations, togetherness shades into completeness; the prefix’s exact contribution can be uncertain.