cu-

• cum-, cun- — In certain verbs where conjugation intonations can fall on the "cu" and where a proceeding consonant doesn't assimilate the "m" also in derivative terms from aforementioned verbs. By analogy with conjugated forms, some infinitives may change the "u" to "o", e.g. "conteni".
• co-, coa- — In certain verbs where intonation falls on the prefix of the verb infinitive, e.g. "coase".

Inherited from Latin com-, a prefixation of cum (“in, into”); see cu.

cu-

1. (forms verbs) used to denote derivation

• cu

• con-